Topic: overwintering

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In search of the elusive ladybird spider

The female is a velvety blue-black. The male looks a bit more like its namesake. These are ladybird spiders (Eresus sandaliatus). The elusive, raisin-sized spider was once thought to have been extinct, but UK-based co...

What’s the difference between hibernation and sleep?

The Arctic Ground Squirrel hibernates by burrowing under the permafrost and slipping into a state of suspended animation. The female black bear can give birth while she hibernates. The fat-tailed dwarf lemur prepares ...

Return of the Wood Frog – Invisible Nature

The common wood frog (Rana sylvatica) has an unusual strategy for coping with the cold. While most terrestrial frogs and toads burrow deep underground to escape freezing temperatures when they hibernate, the wood frog...

Secrets Of The Snowy Owl

Follow the migration path of Baltimore, a young male snowy owl outfitted with a GPS transmitter backpack for a research project called Project Snowstorm. Project Snowstorm's researchers are following the owls by t...

Where Do Birds Go In Winter? – It’s Okay to Be Smart

Where do birds go for the winter, and when did we first figure out where they were disappearing to every year? Do they go to the moon, or are they off to fight battles with goat-riding armies? (Spoiler alert: Those th...

How do trees survive winter? – MinuteEarth

Fossil records tell us that about 250 million years ago, there wasn't a tree on Earth that was designed to survive temperatures below freezing. They were all built for life in the tropics where it's always warm, water...

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