Disappearing Frogs
Also, frogs’ eggs have no shells, exposing embryos to increased UV-B radiation levels, which can cause harmful mutations. Pollution has contaminated the water frogs thrive in and global climate change is causing higher levels of infectious diseases. What can be done to protect threatened frogs? In some cases, nothing very effective. There are a number of species that now live only in carefully controlled zoo or laboratory environments, and it may or may not be possible to reintroduce them into the wild. In many cases, others thinks it's better to concentrate on saving habitats and letting their endangered amphibians survive or perish in the wild than to catch the remaining animals and keep them in a modern ark in hopes of a later opportunity to reintroduce them somewhere. Part of the reason is that climate change is altering habitats in ways that we can't predict very well, so that conditions that might be ideal in a particular spot might be ephemeral. In the United...
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