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Jaws of death: How the canine teeth of carnivorous mammals evolved to make them super-killers

Jaws of death: How the canine teeth of carnivorous mammals evolved to make them super-killers
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United statesAlistair evansDavid hockingTahlia pollockஒன்றுபட்டது மாநிலங்களில்அலிஸ்டர் எவன்ஸ்டேவிட் ஹாக்கிங்

The Sound of One Walrus Clapping

The Sound of One Walrus Clapping Spoiler: It’s very loud. Video Sivuqaq the walrus demonstrated the sound he can make with his flippers at Six Flags Discovery Kingdom in Vallejo, Calif. He’s probably not giving you the slow clap. Probably. By Sabrina Imbler June 29, 2021, 7:03 p.m. ET Starting in the late 2000s, Colleen Reichmuth and Ole Larsen made a number of visits to Six Flags Discovery Kingdom in Vallejo, Calif., to hear a walrus make some noise. The male Pacific walrus, named Sivuqaq, was approaching sexual maturity, which meant he might soon spout the signature din that male walruses make in breeding season.

United statesUniversity of adelaideSouth australiaDrew barrymoreDavid hockingAdam sandlerColleen reichmuthEduardoj fernandezUniversity of californiaUniversity of southern denmarkTasmanian museumRoyal society open scienceCole larsenSix flags discovery kingdomSanta cruzSouthern denmark

Unique seal swimming patterns could inspire new underwater drones

Unique seal swimming patterns could inspire new underwater drones This competition is now closed Unique seal swimming patterns could inspire new underwater drones Advertisement While biologists have long known that seals and sea lions have had two different methods for swimming, the reason behind this has been a mystery. By using cutting-edge engineering alongside footage of animal behaviour, scientists can now explain the origins of efficient swimming in the animals. Seals and sea lions are fast-swimming ocean predators that use their flippers to “fly” through the water. But not all seals are the same – some use their front flippers to swim, while others propel themselves with their back feet.

City ofUnited kingdomShibo wangDavid hockingMonash universityRoyal national orthopaedic hospitalNatural history museumAustralia monash universityLondon natural history museumWalpole bayCurrent biologyEditorial assistantScience focusநகரம் ஆஃப்ஒன்றுபட்டது கிஂக்டம்ஷிபோ வாங்

How seals adapted to move through water

How seals adapted to move through water Collaboration of zoologists and engineers solves seal “evolutionary riddle”. Have you ever wondered how seals learned to perform their skilled underwater acrobatics? Zoologist David Hocking, formerly of Monash University and now curator of vertebrate zoology and palaeontology at the Tasmanian Museum and Art Gallery, did, and says he has now helped “to solve an evolutionary riddle at the heart of seal evolution”. Seals and sea lions propel themselves through the water to catch their prey – but true seals (otariids) generally use their front flippers while eared seals (phocids) use their back feet, and the other limbs are used for steering.

South australiaUnited kingdomCity ofAlistair evansDavid hockingMonash universityNatural history museumTasmanian museumArt galleryCurrent biologyFiona andersonதெற்கு ஆஸ்திரேலியாஒன்றுபட்டது கிஂக்டம்நகரம் ஆஃப்அலிஸ்டர் எவன்ஸ்டேவிட் ஹாக்கிங்

Newcastle University: Engineers and biologists team up to reveal how seals evolved to swim

Share New research combines cutting-edge engineering with animal behaviour to explain the origins of efficient swimming in Nature’s underwater acrobats: Seals and Sea Lions. Seals and sea lions are fast swimming ocean predators that use their flippers to literally fly through the water. But not all seals are the same: some swim with their front flippers while others propel themselves with their back feet. In Australia, there are fur seals and sea lions that have wing-like front flippers specialised for swimming, while in the Northern Hemisphere, grey and harbor seals have stubby, clawed paws and swim with their feet. But the reasons why these two different ways of swimming evolved has perplexed biologists for generations. Is one style better than the other?

South australiaAlistair evansShibo wangDavid hockingBen burvilleFiona andersonSea lionsNewcastle universityNewcastle university dr ben burvilleMonash universityMonash university school of biological sciencesAerospace engineeringNorthern hemisphereMonash university ledCurrent biologyMonash university school