An immigration judge found the official document initiating Kseniia Petrova’s deportation to be legally deficient. She ...

A Russian researcher at Harvard who is being held for failing to declare frog embryos while passing through customs tells ABC News that the ordeal has been shocking.

This surge of glucose acts like a natural antifreeze, preventing their cells from shrinking or bursting as ice crystals form in the spaces between them. As more ice accumulates, the frog’s ...

Kseniia Petrova, a Harvard Medical School researcher detained by Customs and Border Patrol officials in February, denied ...

The frogs are only a few centimetres in size ... Batrachotoxin opens sodium channels on nerve cells and the massive influx of sodium then impairs the neuron’s ability to send signals to muscles.

Momentum is building for PROTAC treatments that eliminate disease-causing proteins, including those responsible for difficult ...

The Department of Homeland Security alleged that Kseniia Petrova, a Russian scientist working at Harvard Medical School, ...

New Guinea is home to some of the world’s most toxic birds. Why they contain poison, and how they withstand it is still a ...

Just before it hibernates, the frog starts producing large amounts of glucose. The glucose accumulates inside cells, where it reduces the freezing point of water, preventing ice from forming.

Kseniia Petrova fled Russia after protesting its invasion of Ukraine. Caught in President Trump’s immigration crackdown, she ...