There are about 5,000 known mammalian species alive at present. Given the average species lifespan for mammals, the background extinction rate for this group would be approximately one species ...

There are lots of mammals in the world and to help you identify them, there are two important things to know. The first thing is that all mammals have hair like sloths who love hanging upside down ...

Then, in a bait-and-switch that wouldn’t fool a three-year-old, Interior waived Marine Mammal Protection Act safeguards for polar bears and walruses in the Chukchi Sea — effectively giving oil ...

resulting in an almost 16-fold increase in background noise intensity in places like the waters off the coast of California, an area rich with marine mammal migration. Scientists suspect that ...