The rarely seen, tiny creatures float upside down and aren't afraid to go up against the venomous Portuguese man o' war.
An Eastern Pacific green sea turtle seems to have strayed far from home.
The distinctive, 19-year-old reptile passed his yearly physical exam at the South Carolina Aquarium.
The little-seen marine mammal was recorded off the coast of Madagascar.
As many as 25 of the critically endangered animal were observed in the Gulf of California.
Never before have the young of the elusive creature been studied.
The new captive birth offers hope for the critically endangered species.
The lifelong water-dweller may be drawn north by warmer El Nino waters.
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