Marker says the sperm bank at the Cheetah Conservation Fund she founded in the southern African nation is a “frozen zoo” of ...

Ultrastructure expansion microscopy of murine male germ cells reveals the fine molecular structures of centrioles (shown in ...

Male infertility is a major issue worldwide and its causes remain unclear. Now, an international team of researchers led by ...

One of Trevor Barrett’s excavators and a Robert B. Our tugboat were used to remove the dead sperm whale from Nantucket’s ...

Analysis of the DNA and proteins of a range of animals has revealed that sperm’s molecular toolkit arose in our single-celled ...

A limited necropsy of a 52-ton sperm whale that washed up on Nantucket was conducted Nov. 21. What was found, and where were ...

Whale watchers in Madeira captured the astonishing moment orcas took down the deep-diving marine mammal. The predatory ...

A rare young pygmy sperm whale dies after swallowing a plastic bag: an exceptional case that highlights the alarming impact ...

A polar bear devours a sperm whale on the ice of Svalbard, a scene that reveals how Arctic wildlife is struggling to survive ...

A jaguar that snuck up on a photographer trying to spot an armadillo, a polar bear sitting on a sperm whale, and more take ...

Kaitlyn Bristowe and her ex-fiancé Shawn Booth previously entrusted fellow Bachelor Nation alum Whitney Bischoff to freeze ...