Especialidades JA/Anfíbios/Respostas
1
2
3
4
5
6
7
Amphibians are insect eaters, so they are very valuable for controlling mosquito populations. They are also the preferred dinner for several mammal, bird, fish, and reptile species.
Amphibians are valuable for medical research. They are raised and sold to research institutions.
8
Toads burrow below the frost line and hibernate for the winter. Plant matter actually generates a bit of heat as it decays, so toads prefer areas with plenty of leaf litter and fallen logs.
9
Here are the calls of three frogs.
File:Bufo bufo call1.ogg | File:Pseudacris-crucifer-002.ogg | File:Leptopelis vermiculatus call.ogg |
10
Frogs call by passing air through the larynx in the throat. In most calling frogs, the sound is amplified by one or more vocal sacs, membranes of skin under the throat or on the corner of the mouth that bulge out during the amplification of the call.
11
11a
11b