Learn a bit about these seafaring Arctic giants.
Camera trap pictures capture a mother watching over her new bundles of energy.
With only about 30 left, the amur leopard is on the brink of disappearing, due to loss of habitat forcing them to live in closer proximity to people.
Things are looking up for the world's rarest cat, whose population has doubled in number over the past decade.
Thanks to a strong recovery, the small minnow has been removed from the federal list of endangered and threatened animals.
Get a snapshot of the plight of Sumatran elephants in this infographic.
Florida once again tops the list of states where shark attacks are reported -- but it just may be because people swim there year-round.
Scientists document the lightning-fast transition between the extinction of the waitaha penguin and the New Zealand colonization by the newer species.
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