Animals

Diprotodon dates back to the Pleistocene epoch and is a giant relative of wombats and koalas.

Nature doesn't have strict rules for cross-species coupling.

The extra legs caterpillars have appear have origins in the primitive crustaceans that insects evolved from during the Ordovician period over 400 million years ago.

Orcas have their own dialect, greeting ceremonies and even wore salmon as hats in a weird fad during the 1980s.

From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are displaying some fascinating — and sometimes terrifying — behaviors.

Researchers used DNA analysis and traditional knowledge to learn about an orca named Old Tom and his family's remarkable relationship with humans.

These weird-looking stocky mammals roam Alpine zones and forested valleys in Asia, using their specially adapted split hooves help them traverse the steep, rocky terrain.

The leading group is so diverse that it represents one in every three animal species on Earth.

Scientists have performed a necropsy on a great white shark that washed up in Nova Scotia — the fifth unexplained stranding of its kind in a year — but were unable to determine the cause of death.

Ancient Egypt had far more venomous snakes than the country does today, according to a new study of a scroll.