Group items tagged

Whale shark mugshots reveal teenage males hang around WA's coast.

Violent passions -- jealous cleaner shrimp murder their rivals.

Dolphins in Shark Bay, Australia, cooperate to herd females in ways that anthropologist Barbara J. KING says are unusually complex. Related research may shed light on the evolution of our own brains.

Dolphins in Shark Bay, Australia, cooperate to herd females in ways that anthropologist Barbara J. KING says are unusually complex. Related research may shed light on the evolution of our own brains.

Octopuses are generally loners. Squids often form schools. But cuttlefish (or seacuttles if you will)…they outright just don't get along with one another. In the video below two Giant Australian Cuttlefish males that are bit cranky fight over a female. They are both flashing the characteristic Zebra "Don't F**K With Me" pattern. Make sure you watch after 2 minutes when they really throw down.

Octopuses are generally loners. Squids often form schools. But cuttlefish (or seacuttles if you will)…they outright just don't get along with one another. In the video below two Giant Australian Cuttlefish males that are bit cranky fight over a female. They are both flashing the characteristic Zebra "Don't F**K With Me" pattern. Make sure you watch after 2 minutes when they really throw down.

Bunbury dolphins face increased water noise, boat disturbance, and tourist traffic from new projects Female dolphins stay in estuaries for food, and s...

Bunbury dolphins face increased water noise, boat disturbance, and tourist traffic from new projects Female dolphins stay in estuaries for food, and s...

The Christmas Island crab migration, considered a wonder of the planet, has begun, and this year the crabs have some assistance. Thousands of crabs are using the world's only purpose-built crab bridge to scuttle safely from the forests to the oceans to spawn.

The Christmas Island crab migration, considered a wonder of the planet, has begun, and this year the crabs have some assistance. Thousands of crabs are using the world's only purpose-built crab bridge to scuttle safely from the forests to the oceans to spawn.

Watch the Captivating Courtship Dance of Manta Rays.

This shark looks male but has female reproductive organ.

Pod of heroic dolphins are filmed defending a humpback and her calf Sunny from five male whales.

Researchers from The University of Western Australia have discovered male bottlenose dolphins can retain individual vocal labels, or "names", to help recognise friends and rivals in their social network, much like humans.

Huge crocodile trapped by wheelie bin barricade after appearing in Queensland backyard.

Long-thought to be a unique characteristic of human societies, researchers now say some dolphins can actually form multiple levels of alliances among their societies.

Adult male sperm whales (Physeter macrocephalus) are long distance runners of the marine realm, feeding in high latitudes and mating in tropical and subtropical waters where stable social groups of females and immatures live. Several areas of uncertainty still limit our understanding of their social and breeding behavior, in particular concerning the potential existence of geographical and/or social fidelities. In this study, using underwater observation and sloughed-skin sampling, we looked for male social fidelity to a specific matrilineal sperm whale group near Mauritius. In addition, we captured a wider picture of kin relationships and genetic diversity of male sperm whales in the Indian Ocean thanks to biopsies of eight individuals taken in a feeding ground near the Kerguelen and Crozet Archipelagos (Southern Indian Ocean). Twenty-six adult male sperm whales were identified when socializing with adult females and immatures off Mauritius. Sloughed-skin samples were taken from thirteen of them for genetic analysis. Long-term underwater observation recorded several noteworthy social interactions between adult males and adult females and/or immatures. We identified seven possible male recaptures over different years (three by direct observation, and four at the gametic level), which supports a certain level of male social fidelity. Two probable first- and thirty second-degree kin relationships were highlighted between members of the social unit and adult males, confirming that some of the adult males observed in Mauritian waters are reproductive. Male social philopatry to their natal group can be excluded, as none of the males sampled shared the haplotype characteristic of the matrilineal social group. Mitochondrial DNA control region haplotype and nucleotide diversities calculated over the 21 total male sperm whales sampled were similar to values found by others in the Indian Ocean. Our study strongly supports the existence of some levels of male sperm whale socia