The rarely seen, tiny creatures float upside down and aren't afraid to go up against the venomous Portuguese man o' war.
A field of grey, motionless kangaroos staring down a bicyclist in a recent YouTube video is not evidence of marsupial zombies, scientists say.
A police officer braves the risk of being sprayed to help the young animal out of a jam.
The latest creature to go viral online looks like a tiny rabbit.
A viral clip from last winter shows a sheet of ice smashing into a house. How does this happen?
Tiny fish that has gone viral in recent days survives operation on his head.
The decision came after a rare, two-day closed-door session of the UN health body's emergency committee.
Many potential drug cures remain in the laboratory -- and one treatment won't fit all.
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