When lions breed with tigers the resulting hybrids are known as ligers and tigons. There are also lion and leopard hybrids known as leopons and lion and jaguar hybrids known as jaglions.

The platypus uses its bill to find animals that it feeds on. Its bill can sense the tiny electric fields that their preys emit.

Modern teenagers are better behaved than their counterparts of 20 years ago, showing "less problematic behavior" involving sex, drugs and drink.

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