Because carnivory requires a lot of oxygen. The carnivore has move quickly to catch its prey and also because digesting protein seems to take a lot of oxygen. HIRSHON: The researchers think the rise of carnivores drove the evolution of a dazzling array of predator-foiling adaptations in prey ...
Carnivora is a group of mammals that includes families such asFelidae(the cat family),Canidae(the dog family) andUrsidae(the bear family).Pinnipeds(seals, sea lions and the walrus) are a branch of carnivorans adapted to life in the sea. All carnivorans (including pinnipeds) share a common...
It’s not only that, but there SHOULD be more dinosaurs, more diverse wether they’re soaring in the sky or lurking in the ocean’s depths. Also, the graphics are fairly good— But can be improved with smoothing and extra key details. I’m not saying that you have to turn this ...
Some polar bears stay on permanently frozen sea ice in the Arctic Basin, but most live on the annual sea ice that forms around the Arctic Basin. This annual sea ice melts in the summer, so polar bears are forced to spend several months on land while they wait for it to freeze over ag...
"Carnivores have recovered in a way that would have seemed incredibly unlikely in the 1970s, when extinction of some species looked like a real possibility." The researchers collected survey reports from the last 40 years and compared changes in the species' distribution extent and population sizes...
As growth makes neighborhoods more crowded for humans, it's also concentrating carnivores like bobcats and coyotes into the remaining green spaces, leading them to interact with each other more frequently than they do in wild areas, according to research
Carnivores transport vitamin A in blood plasma not only as retinol but predominantly as retinyl esters (vitamin A esters). In the plasma, retinol is bound to aspecific binding protein, the retinol-binding protein (RBP). Plasma retinyl esters, however, are nonspecifically bound to all three ...
It seems like sharks attack (攻击) people a lot,but chances of getting stung by a bee or getting hit by lightning are greater.Even so,experts say it is important to keep an eye out for sharks when swimming in the ocean.A.Sharks do not normally attack people.B.Ther...