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morales5853

How animals have adapted to their environment - 1 views

resources.woodlands-junior.kent.sch.uk/...adaptation.htm

Animals Environment

shared by morales5853 on 31 Oct 14 - No Cached
  • An adaptation is a way an animal's body helps it survive, or live, in its environment. Camels have learned to adapt (or change) so that they can survive.
    • morales5853
      morales5853 on 04 Nov 14
       
      A adaption is a way animals get used to their habitat and by this adaption they learn to survive in their home
morales5853

Animal Adaptations - 0 views

www.uen.org/...animal.shtml

Adaptations Animals Attitude

shared by morales5853 on 07 Nov 14 - Cached
  • An adaptation is something about an animal that makes it possible for it to live in a particular place and in a particular way. It may be a physical adaptation, like the size or shape of the animal's body, or the way in which its body works. Or it may be the way the animal behaves. Each adaptation has been produced by evolution.
    • morales5853
      morales5853 on 07 Nov 14
       
      When a animal lives in a place, it's because he needs what is were he is. For example, a animal doesn't live in a small place if he is a big animal. Also animals live in different places because of their attitude likes to run so he lives in a open area.
morales5853

Why do certain animals only live in certain parts of the world? - 1 views

answers.yahoo.com/...index

Places world animals living home Habitat

shared by morales5853 on 31 Oct 14 - No Cached
  • you cannot derive a polar bear of its cold climate because they are animals who have adapted to their surroundings. Their fur is a significant trait that enables them to survive the winter climate, & if they are placed in a desert for example, they will die from the heat & the inability to adapt to the weather.
    • morales5853
      morales5853 on 04 Nov 14
       
      Animals have their own way to be because it will help them survive where they live, for example, a scorpion wont be born with lots of fur, because he lives in the desert, were there's lots of heat.
    • morales5853
      morales5853 on 05 Nov 14
       
      A animal is born the way he can survive in its habitat, because if a animal that lives in the north pole has only skin and not fur he may probably die because of the coldnes the day he is born
deleon6878

My Library - 0 views

www.diigo.com/deleon6878

fish Facts

shared by deleon6878 on 31 Oct 14 - No Cached
  • For sharks and Rays this is not a problem as they do not have color vision anyway. The eyes of shallow water species are adapted to have a maximum sensitivity to light of around 500 nanometres, and the eyes of those species that live in deeper waters are adapted to 475-480 nanometres. Most Teleost fish however have color vision, and the eyes of the Trout (Onkorhynchus mykiss) have three sensitivity peaks at, 455, 530 and 625 nanometres.
deleon6878

The Earth Life Web, the Fish Eye and Sight in Fish - 0 views

www.earthlife.net/sight.html

shared by deleon6878 on 14 Nov 14 - No Cached
  • For sharks and Rays this is not a problem as they do not have color vision anyway. The eyes of shallow water species are adapted to have a maximum sensitivity to light of around 500 nanometres, and the eyes of those species that live in deeper waters are adapted to 475-480 nanometres. Most Teleost fish however have color vision, and the eyes of the Trout (Onkorhynchus mykiss) have three sensitivity peaks at, 455, 530 and 625 nanometres.
    • deleon6878
      deleon6878 on 14 Nov 14
       
      Sharks and Rays are color blind so they don't care about how deep they go cause the deeper you go the less color you see, the fish,sharks,rays,etc that live deeper in the ocean they used to 475-480 nanometers 
    • deleon6878
      deleon6878 on 14 Nov 14
       
      However teleost fish have color vision and the trout have three sensitivity limits at, 455, 530 and 625nanometers so they can see the colors in the water if they go deeper they would not see anything 
jaime5789

BBC Nature - Dinosaurs 'shrank' regularly to become birds - 0 views

www.bbc.co.uk/28563682

shared by jaime5789 on 04 Nov 14 - No Cached
  • Huge meat-eating, land-living dinosaurs evolved into birds by constantly shrinking for over 50 million years, scientists have revealed.
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Gigantic dinosaurs evolved into the small birds we know today! Scientists think that dinosaurs evolved into birds, now people also think that dinosaurs used to have feathers! Big meat eating dinosaurs such as the Spinosaurus and T-Rex may have evolved into the modern birds we know today! 
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Gigantic dinosaurs evolved into the small birds that we see today! Scientists think that dinosaurs evolved into birds, now people also think that dinosaurs used to have feathers! Big meat eating dinosaurs such as the Spinosaurus and T-Rex may have evolved into the modern birds we know today! 
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Gigantic dinosaurs such as the Spinosaurus and T-Rex evolved into the small birds that we see today. Scientists think that dinosaurs evolved into birds, now people also think that dinosaurs used to have feathers! 
    • jaime5789
      jaime5789 on 05 Nov 14
       
      New Paraphrase: Did you know that dinosaurs, such as the Tyrannosaurus Rex and the fearsome Velociraptor became smaller, and after 50 million years, we now think that... 
  • Previous work has shown that theropod dinosaurs, the dinosaur group which included Tyrannosaurus rex and Velociraptor and gave rise to modern birds, must have decreased in size at some point in their evolution into small, agile flyers.
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Now, work has shown that two legged dinosaurs including T-Rex and the fearsome Velociraptor gave birth to the birds we see today!
    • jaime5789
      jaime5789 on 05 Nov 14
       
      The University of Adelaide, wonders a lot about dinosaurs... They found out that dinosaurs such as Spinosaurus and Utahraptor made the birds we know today! 
  • But size changes frequently occurred in dinosaur evolution, so the research team members, led by Mike Lee, from the University of Adelaide, Australia, wanted to find out if the dramatic size reduction associated with the origin of birds was unique. They also wanted to measure the rate of evolution in dinosaurs using a large data set
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Research indicates that dinosaurs constantly changed, the University of Adelaide wants to find out what makes the gigantic size changes? They found out that the evolution by dinosaur is unique and amazing! 
    • jaime5789
      jaime5789 on 04 Nov 14
       
      The University of Adelaide also wants to measure the the frequency of dinosaur evolution!
    • jaime5789
      jaime5789 on 05 Nov 14
       
      The U.O.A (University Of Adelaide) wonders, "how can something so big turn into something so small?" this is due to new eras, and the evolution of dinosaurs & birds!
  • ...9 more annotations...
  • They found that the dinosaur group directly related to birds shrank rapidly from about 200 million years ago.
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Scientists found out that a dinosaur species related to birds shrank in a short time and probably turned into the birds we know today! 
    • jaime5789
      jaime5789 on 05 Nov 14
       
      Dinosaur species related to birds, shrank in a short period of time! We know believe that they turned into the birds that we're familiar with today! 
  • Theropods shrunk 12 times from 163kg (25st 9lb) to 0.8kg (1.8lb), before becoming modern birds.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      Really big dinosaurs started shrinking and their weight decreased slowly..
  • The researchers found theropods were the only dinosaurs to get continuously smaller.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      Scientists now know that the two-legged dinosaur species were the dinosaurs that frequently got smaller! 
  • From this analysis they produced a detailed family tree mapping out the transformation of theropods to their bird descendants.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      We now predit that the two-legged dinosaurs transformed into birds!
  • It traces evolving adaptations and changing body size over time and across dinosaur branches.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      We now think that dinosaurs adapted into transforming into birds little by little! 
  • The researchers concluded that the evolution of the branch of dinosaurs leading to birds was more innovative than other dinosaur lineages.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      We conclude that, dinosaurs probably changed into birds! 
  • this sustained shrinking and accelerated evolution of smaller and smaller body size allowed the ancestors of birds to develop traits which helped them to cope much better than their less evolved dinosaur relatives.
    • jaime5789
      jaime5789 on 07 Nov 14
       
      Dinosaurs were getting smaller they developed traits to survive. 
  • The researchers believe that miniaturisation and the development of bird-like traits had a joint influence on the evolution of the dinosaurs into today's birds. Professor Michael Benton, from the University of Bristol's school of earth sciences, said: "This study means we can't see the origin of birds as a sudden or dramatic event, with a dinosaur becoming a powered flyer overnight. "The functions of each special feature of birds changed over time - feathers first for insulation, and later co-opted for flight; early reductions in body size perhaps for other reasons, and later they were small enough for powered flight; improvements in sense of sight and enlargement of brain - even a small improvement in these is advantageous. "So perhaps it's a long-term trend associated with deputation to a new set of habitats, in the trees, to avoid predation, and to exploit new food resources."
    • jaime5789
      jaime5789 on 07 Nov 14
       
      Researchers now think that the shrinking of the dinosaurs was what developed dinosaurs into todays birds! Professor Michael from the University of Bristol says that we can't study the era of birds, just like that...
    • jaime5789
      jaime5789 on 07 Nov 14
       
      This is a long process that didn't just happen like that, you sleep, you wake up and you're a bird, no! Its a very difficult process! 
  • "Birds evolved through a unique phase of sustained miniaturisation in dinosaurs," Mr Lee said.
    • jaime5789
      jaime5789 on 07 Nov 14
       
      Birds evolved due to the dinosaurs becoming smaller!
morales5853

Why do animals live in certain places? - 0 views

www.factmonster.com/...A0768522.html

Animals Habitats Home

shared by morales5853 on 31 Oct 14 - No Cached
  • Animals live only where they can survive. Koalas, for example, eat only the leaves of certain eucalyptus trees, so they must live in Australia, where these trees grow.
    • morales5853
      morales5853 on 04 Nov 14
       
      A animal may only live were he is used to and where he knows how to survive its like if a polar bear suddenly appeared in the desert, he wouldn't survive because he is not used to the environment and doesn't know what to eat.
    • morales5853
      morales5853 on 05 Nov 14
       
      Animals only live were they are really adapted to because there is were they already know how to live and they know which animals to get away from and what to eat.
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garzat5774

How birds fly | Sciencelearn Hub - 0 views

sciencelearn.org.nz/...How-birds-fly

birds

shared by garzat5774 on 03 Dec 14 - No Cached
  • Birds have many physical features, besides wings, that work together to enable them to fly. They need lightweight, streamlined, rigid structures for flight. The four forces of flight – weight, lift, drag and thrust – affect the flight of birds.
  • Flying birds have: lightweight, smooth feathers – this reduces the forces of weight and drag a beak, instead of heavy, bony jaws and teeth – this reduces the force of weight an enlarged breastbone called a sternum for flight muscle attachment – this helps with the force of thrust light bones – a bird’s bones are basically hollow with air sacs and thin, tiny cross pieces to make bones stronger – this reduces the force of weight a rigid skeleton to provide firm attachments for powerful flight muscles – this helps with the force of thrust a streamlined body – this helps reduce the force of drag wings – these enable the force of lift.
  • WingsThe shape of a bird’s wing is important for producing lift. The increased speed over a curved, larger wing area creates a longer path of air. This means the air is moving more quickly over the top surface of the wing, reducing air pressure on the top of the wing and creating lift. Also, the angle of the wing (tilted) deflects air downwards, causing a reaction force in the opposite direction and creating lift.Larger wings produce greater lift than smaller wings. So smaller-winged birds (and planes) need to fly faster to maintain the same lift as those with larger wings.Wing loading tells you how fast a bird or plane must fly to be able to maintain lift: wing loading = weight/wing area (kilograms per square metre).A smaller wing loading number means the bird/plane can fly more slowly while still maintaining lift and is more manoeuvrable.
  • ...7 more annotations...
  • GlidingWhen a bird is gliding, it doesn’t have to do any work. The wings are held out to the side of the body and do not flap. As the wings move through the air, they are held at a slight angle, which deflects the air downwards and causes a reaction in the opposite direction, which is lift. But there is also drag (air resistance) on the bird’s body, so every now and then, the bird has to tilt forward and go into a slight dive so that it can maintain forward speed.
  • SoaringSoaring flight is a special kind of glide in which the bird flies in a rising air current (called a thermal). Because the air is rising, the bird can maintain its height relative to the ground. The albatross uses this type of soaring to support its multi-year voyages at sea.
  • FlappingBirds’ wings flap with an up-and-down motion. This propels them forward. The entire wingspan has to be at the right angle of attack, which means the wings have to twist (and do so automatically) with each downward stroke to keep aligned with the direction of travel.
  • Birds obtain thrust by using their strong muscles and flapping their wings. Some birds may use gravity (for example, jumping from a tree) to give them forward thrust for flight. Others may use a running take-off from the ground.
  • Different birds have different adaptive features to meet their flight needs: Some birds are small and can manipulate their wings and tail to manoeuvre easily, such as the fantail (pīwakawaka). The hawk, with its large wingspan, is capable of speed and soaring. Gannets and seabirds are streamlined to dive at high speeds into the ocean for fish. Godwits, although small, are equipped to fly long distances.
    • garzat5774
      garzat5774 on 03 Dec 14
       
      birds have some chacteristics that help them fly, birds are light weighted they have light feathers insted of heavy ones that add more weight to their bodys, they also have a beak insted of jaws that also add weight to their boddys, thay have hollow bones in their body that means that the bone has nothing inside it
    • garzat5774
      garzat5774 on 03 Dec 14
       
      birds get ready to fly by flapping their wings, some birds use "gravity" to take of some run and they jump just like an airplane and others jump from a tree and then start flapping their winds
morales5853

Animal Habitat Requirements of Wildlife - 1 views

www.clemson.edu/...fs14_habitat_requirements.html

Habitat Requirements Wildlife Animals

shared by morales5853 on 07 Nov 14 - No Cached
  • Habitat for any wild animal must provide: cover (shelter) from weather and predators; food and water for nourishment; and space to obtain food, water, and to attract a mate.
    • morales5853
      morales5853 on 07 Nov 14
       
      Animals of course decide to live were they know they have all the necessary things. Once they are adapted to their habitat, they certainly know there are beasts they should protect from.
  • South Carolina does not have pronghorn antelope because we do not have the wide-open spaces that these animals require.
    • morales5853
      morales5853 on 07 Nov 14
       
      All animals only live were they have their own space and security thats why elephants don' t live in the forest were there are many trees instead they live in Africa in the open space.
  • Wildlife do need things in their environment to hide under, but cover also includes having something to hide behind, or some type of obstruction between the animal and a potential predator.
    • morales5853
      morales5853 on 07 Nov 14
       
      If a animal is being chased by his predator, he can cover itself with the predator of the animal that is chasing him and he can be safe only if the animal that he is hiding with doesn't eat him.
  • ...1 more annotation...
  • If a landowner removes or changes the amount or specific type of cover available to wildlife in that area, the local wildlife population may be affected. If a landowner decides to allow a forested property to mature, bobwhite quail populations may decline because feeding, nesting, and brood cover have been removed.
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