Longest Gestation
Asian elephants are born after a gestation period
of 19 to 22 months.
Largest Mammal
Blue whales are the largest mammals of all time and the largest living animal.
Females grow to a length of about 27
m. They may weigh well over 100
metric tons. The heaviest blue whale weighed more than 190
metric tons. The longest ever measured was more than 33
m.
African elephant bulls are the heaviest land animal. Large males may weigh
as much as 5,895kg. Despite their power and size, elephants are vegetarians,
or herbivores.
©G.Ellis/GLOBIO.org
Largest Living Animal on Land
African elephants are the heaviest land animal. They are also the second tallest
land animal. Large bulls (males)
weigh more than 5,895
kg and are 3.5
m tall at the shoulder. Giraffes, which can grow to a height of 5
m, are the tallest land animals. Large males weigh more than 1,800
kg.
Smallest Vertebrate
Australia's stout infantfish, slightly smaller than the better-known dwarf
goby, is less than 1
cm long.
Smallest Bird
Adult bee hummingbirds, found in Cuba, weigh about 2
g.
Smallest Mammal
Adult bumblebee bats, which live in Thailand, weigh about 2
g.
Longest Lifespan
In the 1770s, British explorer Captain James Cook presented a Madagascar radiated
tortoise to the royal family of Tonga. The tortoise lived until 1965. It
was at least 188 years old when it died! Several Galápagos tortoises
h