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Hatching frog eggs and raising larval amphibians to metamorphosis can be a fascinating and educational experience for children and adults alike, and can add immensely to the enjoyment of these creatures. If you'd like to give this a try, the following guidelines will help.
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www.dnr.state.wi.us/org/caer/ce/eek/teacher/frogact.htm
www.dnr.state.wi.us/org/caer/ce/eek/teacher/frogact.htm
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The number of eggs the frog lays and the amount of time it takes for the eggs to hatch is different for each type of frog. The average time for hatching is 6 ñ 21 days. All frogs lay many eggs at one time. Some may lay up to 3,000 eggs at one time!
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www.wm.edu/act2online/Magruder/Kislek/Pond/eggs.htm
www.wm.edu/act2online/Magruder/Kislek/Pond/eggs.htm
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At the right you see some frog eggs discovered in a drainage ditch near my home. The black specks are frog embryos suspended in the eggs' gelatinous mass, which is attached to grassblades. If you discover an egg mass, let it stay where it is but return to it regularly and watch what happens.
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www.backyardnature.net/frogsex.htm
www.backyardnature.net/frogsex.htm
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･ 1 Find a pond or drainage ditch, preferably one in which you have heard frogs calling. Ponds containing... ･ 2 Most frogs breed after warm rains. The following day, go to the pond or drainage ditch and search the... ･ 3 Most frogs lay the...
http://www.ehow.com/how_2184532_find-frog-eggs.html
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It's not easy being red, either, Kermit. ... The study authors, led by biologist Karen Warkentin of Boston University, report that tree frog eggs seem tuned to vibrations from predatory snakes attacking an egg clutch, leading to early hatching, up to 30% earlier than normal to escape ending up as dinner.
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www.usatoday.com/tech/science/columnist/vergano/2006-04...
www.usatoday.com/tech/science/columnist/vergano/2006-04-09-egg-vibration_x.htm
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Hardly anything is beyond the appetite of a tadpole; they'll eat plants, decaying animals, and sometimes even frog eggs and other tadpoles.
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www.exploratorium.edu/frogs/mainstory/frogstory5.html
www.exploratorium.edu/frogs/mainstory/frogstory5.html
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Combining physics and biology, Brown scientists levitate frog embryos using magnetic field ... A team of Brown scientists have married physics and biology in their use of a magnetic field to levitate embryos of a small frog.
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www.brown.edu/Administration/George_Street_Journal/frog...
www.brown.edu/Administration/George_Street_Journal/frogeggs.html
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A tree frog is shedding light on the moment in history when our ancestors crawled onto land. ... Now a tree frog could help shed light on this mysterious, pivotal moment in history. This little yellow Panamanian amphibian is the first known vertebrate that can lay its eggs both in water and on land.
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www.livescience.com/animals/080519-frog-eggs.html
www.livescience.com/animals/080519-frog-eggs.html
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