1.   Both he and Caldwell cautioned that much remained unknown about poisonous frogs, which are threatened by the destruction of rain forests.

2.   Caldwell said it was possible that other poisonous frog species in diverse locations like Madagascar and Australia also absorbed toxins from ants and other insects.

3.   Other trousers and dresses are pieced leather in patterns like those on the backs of poisonous frogs.

4.   Scientists believe that poisonous frogs have evolved a toxin uptake system that allows them to isolate poisons in skin glands where they can do their bodies no harm.

5.   Cobras and poisonous frogs are secreted in suitcases, turtles get zipped up in teddy bears and small monkeys are slyly tucked into a pocket.

6.   Among the dangers were sharks, crocodiles and poisonous frogs.