00:05Winter Survival Tactics of Hibernating Animals
00:08Painted turtles bury themselves in pond mud for six months, breathing through their skin.
00:13From Appalachian forests to Kentucky caves, black bears, brown bats, and box turtles vanish beneath snow for months.
00:20Black bears curl inside hollow trees and rocky dens across the Rocky Mountains,
00:24dropping their heart rates from 50 beats per minute down to 8.
00:27Little brown bats hang upside down in Kentucky's Mammoth Cave and abandoned Pennsylvania mines,
00:32dropping their heartbeats from hundreds of beats per minute to just a few.
00:35Painted turtles sink into Michigan pond mud, absorbing oxygen through skin patches near their tails for four straight months.
00:42Groundhogs dig six-foot burrows beneath Pennsylvania fields and drop their body temperature from 99 degrees down to 37, barely
00:49breathing until March.
00:50The meadow-jumping mouse weaves a grass nest deep in Minnesota soil and sleeps for up to nine months, longer
00:57than almost any North American mammal.
00:59Eastern box turtles shuffle into leaf litter across Ohio forests and let their body temperature match the frozen ground, surviving
01:06without food or water.
01:07Eastern chipmunks stuff acorns and hickory nuts into underground chambers, waking every few days in their Appalachian burrows to snack
01:14before dropping back into torpor.
01:16Warmer winters now wake black bears too early across the Colorado Rockies, sending hungry mothers stumbling through snow before berries
01:22return.
01:23Beneath every frozen Vermont meadow and Ohio creek bank, heartbeats slow and wait for spring.
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