A study suggests pigeons navigate using iron-rich immune cells in their livers that can respond to Earth’s magnetic field.
It’s a reckless strategy. One wrong move and the orca is left stranded, unable to return to sea, certain to die. Yet what fascinates biologists even more than the danger is the learning process behind ...
After investigating thousands of wrist bones, scientists suspect the last common ancestor species of humans and chimpanzees ...
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