The fawns rely on physical and behavioral adaptions to help them survive their early weeks. Their mothers leave them hidden in the vegetation while foraging, as the does' presence may attract predators. When there's more than one fawn, they can be left up to 200 yards apart. The fawns are virtually scentless and their reddish-brown coats, covered with pale spots, merge with the dappled sunlight on the forest floor. They instinctively remain still if any animal comes near them. The fawns won't pass feces or urine until their mothers return. The does then ingest their fawns' waste so no sign of their young is left for predators. The female deer also regularly change the fawns' locations. At 3 weeks old the fawns are able to forage and run from danger with their mothers.

To survive the winter, up to 60 percent of Alaskan Wood Frogs' bodies freeze solid. They also stop breathing and their heart stops beating. This allows them to survive temperatures as low as -80 degrees Fahrenheit. And in spring, they thaw out and "come back to life."

To achieve this semi-frozen state, the creatures build up high concentrations of glucose (up to 10 times the normal amount) in their organs and tissues. The sugar solutes act as "cryoprotectants," preventing their cells from shrinking or dying. 

edited by:kelana

Kangaroo rats have adapted to survive in the desert without ever taking a sip of water. Instead, they get all the moisture they need from the seeds that they eat. These critters also have incredible hearing and can jump up to nine feet, which helps them avoid predators.

edited by:kelana