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AnimalsMaybe what Polly wants is a new toy
Changing the toys in a parrot's cage may ease the bird's tendency to fear new things.
By Susan Milius -
AnimalsSome female birds prefer losers
When a female Japanese quail watches two males clash, she tends to prefer the loser.
By Susan Milius -
AnimalsThe secret appetite of cleaner wrasses
The little reef fish that nibble parasites off bigger fish that stop by for service actually prefer to nibble the customers.
By Susan Milius -
Health & MedicineAnthrax toxin curbs immune cells
A toxin produced by the anthrax bacterium suppresses cells that launch the body's immune response.