Green tree ants swarm over oak blue caterpillars but they are not attacking them. They are drinking a sweet liquid that the caterpillars give off especially to attract the ants. The ants act like living armor, shielding the caterpillar from wasps that might lay eggs on it. The ants and the caterpillars are partners in nature.
Apes source of hepatitis B?
Apes source of hepatitis B? A researcher from the University of Edinburgh,
Scotland, has discovered hepatitis B in three wild chimpanzees.
Peter Simmonds believes that the virus co-evolved with primates 10
to 35 million years ago, and that different strains developed when
the virus was passed to humans. His findings counter theories that
the virus spread from the Americas about 400 years ago. 10 MAY 2000
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