Frogs and toads display some of the most amazingly varied breeding behaviors and mechanisms :-)
The Surinam toad (Pipa pipa) is an aquatic species in which the eggs, after being fertilized during a complex courtship, are placed with the aid of the male on the back of the female, embedded in the skin. The eggs do not undergo indirect developmet as in most frogs (they don't hatch as tadpoles), instead, after 3/5 months they emerge as young juvenile frogs.
More Information from Animal Diversity Web:
http://animaldiversity.ummz.umich.edu/site/accounts/information/Pipa_pipa.html
In addition, there are some frogs in South America known as "marsupial frogs". These are tree frogs in which the female has a dorsal pouch of skin on her back, and the eggs develop inside this pouch. After hatching, they come out of the pouch opening that opens posterodorsally.
This is what the female with the eggs looks like:
http://nature.berkeley.edu/~screws/trinidad%20dir/images/IMG_1411.jpg
And there's another amazing frog here in Argentina: the tiny green Darwin frog that lives in the southwestern forests. In this species, the male takes the eggs after they've been fertilized and puts them in his vocal sacs (the pouches at his throat that he uses to produce sounds). They stay in the vocal sacs until they're more developed and can come out and go on growing by themselves.
http://www.globalamphibians.org/images/rhinoderma_copyrighted.jpg
I know this has nothing to do with the question, but I think these are so interesting! :-)
2006-06-25 04:08:06
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answer #1
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answered by Calimecita 7
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The Surinam toad, an aquatic South American toad. They mate in the water, and as the eggs are released the male fertalizes them and presses them to the back of the female. In the next several hours, the skin grows around the eggs to enclose them in a cyst with a horny lid.
After about 80 days, the eggs develop, and the young emerge out of the back of this toad as a bunch of tiny froglets.
2006-06-23 11:25:49
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answer #2
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answered by cookie 1
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the eggs are laid and then attached to the back to develop. in the mean time the skin grows up over the eggs making ot look like the hatching eggs are coming out of the back since you can't see the eggs. ive seen the frog segments several times.
2006-06-23 10:47:36
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answer #3
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answered by theirishunicorn 2
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Many species of spiders carry thier young in hundreds of tiny eggs on thier backs. I've seen them hatch en masse off a spider about three inches long / wide. Disturbing to say the leasst.
2006-06-23 09:54:04
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answer #4
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answered by Argon 3
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I believe you are thinking about organisms in which a parent carries eggs on its back. The eggs, however, are just stuck to its back as a method of protecting the eggs against danger.... The eggs are originally produced inside of the mother and subsequently laid by her and are then carried on the back. It is important to note that the eggs/offspring are not produced in/by the animal's back. This is not physiologically possible.
The arrow poison frog is an example of one animal that carries offspring on its back.
2006-06-23 10:26:49
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answer #5
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answered by Girl Biologist 2
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I dont think so then again I am not sure but I know frogs lay eggs they dont hatch babies from thier backs lol....
2006-06-23 09:43:26
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answer #6
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answered by Anonymous
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A Surinam Toad carries her young IN the skin of her back, where they develop. Once they reach maturity, they "hatch", or are releashed from her flesh in pore like structures.
2006-06-23 11:09:27
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answer #7
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answered by Anonymous
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stockpotato is a real jokester!Human babys do no longer hatch,please do no longer repeat his ramblings or human beings will think of you're retarded.each females egg furnish is produced earlier she is born.Older females produce eggs with thicker shells,i can`t stop guffawing.
2016-12-09 00:46:05
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answer #8
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answered by ? 4
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frog. It's eggs kinda stick to it's back.
http://en.wikipedia.org/wiki/Midwife_toad
2006-06-23 09:42:43
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answer #9
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answered by Anonymous
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the irishunicorn is perfectly right
2006-06-23 12:24:04
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answer #10
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answered by iva 4
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