Humans need sun on our skin to trigger the production of vitamin D, which is necessary for building bones and teeth.
A taste for tadpole
A taste for tadpole Researchers say that one of the causes of the drop
in amphibian populations around the world could be the introduction
of the mosquito fish into new areas in an attempt to combat
malaria. Their research has shown that in the lab the fish will eat
just as many tadpoles as mosquitoe larvae, and in the wild they
actually appear to eat more tadpoles than larvae. 28 AUGUST 1999, P. 14
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