Early humans caused extinction of Australia's giant animals

(PhysOrg.com) -- The mass extinction of Australia's giant animals, such as huge kangaroos and rhinoceros-sized wombats, might have been more rapid than previously thought, according to new research from the University of ...

Horseshoe crabs: 'Living fossils' vital for vaccine safety

On a bright moonlit night, a team of scientists and volunteers head out to a protected beach along the Delaware Bay to survey horseshoe crabs that spawn in their millions along the US East Coast from late spring to early ...

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