White's tree frogs are often very fat, with folds of flesh on their bodies. The skin on their bellies is loose and helps the frogs grip as they climb up slippery tree trunks.
You dirty rat: the new plaque is here
You dirty rat: the new plaque is here Rats with a growing resistance to poisons are
thriving in Melbourne, Australia. The population explosion means
that humans are more at risk from rat-borne diseases. A breeding
pair of rats and their offspring can produce 2000 rats in two
months! Rats are cautious and seem very able to adapt to poisons,
so pest controllers need to change poisons and the way they use
them all the time. APRIL 8, 2001
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