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Aquatic frogs such as the leopard frog(Rana pipiens) and American bullfrog (Rana catesbeiana) typically hibernate underwater. ... Terrestrial frogs normally hibernate on land. American toads (Bufo americanus) and other frogs that are good diggers burrow deep into the soil, safely below the frost line.
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www.scientificamerican.com/article.cfm?id=how-do-frogs-...
www.scientificamerican.com/article.cfm?id=how-do-frogs-survive-wint
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Some frogs hibernate, some become "frog-cicles". ... This places limits on where these kinds of frogs can live. When spring melts the ice and warms the water, these frogs resume their regular lifestyles. Another amphibian that spends winter in deep water, the mudpuppy (a large aquatic salamander), doesn't even hibernate.
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www.naturenorth.com/column/col8.html
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Some animals hibernate over the winter, going into a very deep sleep. Hibernating animals usually retreat to a den, a burrow, or a hollow log for protection and shelter. During "true hibernation," the animal's body temperature drops, ... ; Frog; Tadpoles grow up to be frogs. Many frogs are dormant during freezing weather.
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www.enchantedlearning.com/coloring/Hibernate.shtml
www.enchantedlearning.com/coloring/Hibernate.shtml
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Similarly, frogs will hibernate in the mud at the bottom of the pond, but if the water freezes over then they can quickly drown or be killed by the gasses that build up in the water. Use a floating object or tiny heater to keep a patch of water unfrozen, just as you would for fish.
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www.fortunecity.co.uk/safaripark/fish/66/FROGS.htm
www.fortunecity.co.uk/safaripark/fish/66/FROGS.htm
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Frog Facts: Frogs are amphibians. (They live part of the time in water and part of the time on land.)They are cold-blooded. Frogs hibernate in winter. A frog's tongue is attached to the front of the mouth and is sticky.
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www.crooksville.k12.oh.us/2ndgrade/frogs.html
www.crooksville.k12.oh.us/2ndgrade/frogs.html
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1: Frogs are found only in North America. True or False? ... 2: Frogs can be helpful to humans. True or False? ... 8: Frogs hibernate in the winter. True or False?
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www.seagrant.wisc.edu/frogs/quiz_jumping.html
www.seagrant.wisc.edu/frogs/quiz_jumping.html
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