Discover the extraordinary prehistoric giants – from mega-sloths to monster sharks – that once made today’s animals look ...

一项发布在《内科学年鉴》（Annals of Internal Medicine）上的新研究发现，每天一次长距离步行比多次短距离步行更有利于心脏健康，特别是对锻炼量较少的人来说。 The study looked at more than 33,000 adults aged 40 to 79 in the UK who walked fewer than 8,000 steps a day.

The attack took place off the coast of Nazare, a municipality in the Portuguese district of Leiria, as the family were ...

Today, 21.7 million copies of Who Would Win? books are in print. That doesn’t include the countless homemade Who Would Win?

Tests on a tissue sample confirm a researchers aboard a vessel near Baja California were they first to observe the species alive Kelli Bender is the Pets Editor at PEOPLE. She has been working at ...

Rare tusked whales have been identified and photographed alive at sea for the first time following a herculean research effort off the shores of Mexico, a new study finds. The newly-sighted cetaceans ...

Florida authorities are pushing back on social media rumors about a "serial killer on the loose" in Jacksonville after three women were found dead in separate incidents over three days. The ...

These new proposed rules would allow economic factors to be considered when deciding which species will be protected under the Endangered Species Act Critics have expressed concerns that these changes ...

Scientists confirmed that West Coast transient killer whales actually form two separate groups split between inner and outer coastal habitats. Inner-coast whales hunt smaller prey in shallow, ...

The video breaks down the lingering fear about whether killer whales pose a real danger to humans. It explains how their behavior in the wild differs from the perception created by their size and ...

Charvet Drucker was in a boat off Camano Island in Washington when she filmed the seal's escape from orcas Charvet Drucker shared a seal's escape from killer whales in a series of videos on Instagram ...