The nocturnal creature sits on the moss-covered rocks, but then, at the first sign of danger, it leaps into the water. The frogs belong to a group called torrent frogs — and they were just discovered ...
Despite a shy Texas critter's attempt to avoid contact with humans, it recently ended up closer to a person than most of its species would ever endeavor. On Friday afternoon, Stephanie Bartusov ...
suggesting that human ACE2 transgenic pigs are a viable large animal model for COVID-19.
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