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| | Amphibian Biology |
 | | Tiny larvae hatch from these translucent eggs, and are nourished for a short period by a yolk sac. |
 | | Salamander larvae possess bushy, external gills that are usually lost upon metamorphosis, except in the case of neotenic species or populations. |
 | | Garcia, Fuhrman, F.A. "Tetradotoxin, tarichatoxin, and chiriquitoxin: Historical perspectives." In C.Y. Kao and S.R. Levinson, eds., Tetradotoxin, Saxitoxin, and the Molecular Biology of the Sodium Channel. |
| www.livingunderworld.org /biology (1558 words) |
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