They can travel more than 10,000 miles (over 16,000 km) in a year and still pinpoint exactly where in the surface world they laid their eggs.
Dolphins, similar to bats and a few other animals, have the amazing ability of echolocation to help them navigate the ocean.
Guiana dolphins, found off the eastern coasts of South and Central America, take it a step further.
Most species of spiders have organs known as slit sensilla, which allow them to sense even the slightest amount of movement anywhere in their vicinity.
They do it through a process known as magnetoreception. To put it simply, magnetoreception allows the pigeons to actually feel the pull of the earth's magnetic field.
Sharks, like the Guiana dolphin, are also blessed with electroreception. Electroreception is a bit more common in fish than it is in mammals, but it's still quite impressive.
Over millions of years in the depths of the ocean, they have evolved from single-celled organisms into multi-celled creatures that lack a central nervous system or any sort of organs, including eyes.
The platypus is one of only two amphibious or land-dwelling animals that is equipped for electroreception, the other being the platypus' cousin, the echidna.
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