Sharks might not be a natural biological group, with most species potentially closer kin to rays than to an oddball group of sharks.
The Amazon rainforest gets all the attention, but the neighboring cerrado stores massive amounts of carbon in its peaty soils ...
Researchers suggest that predation by a subspecies called Bigg's orcas might explain why members of another one, called resident orcas, stay in such large family groups ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results