Life & Evolution

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seahorse skeleton

The long flexible tails of seahorses (dye-stained skeleton of Hippocampus capensis shown) are made of square segments and are one of the rare exceptions to the round tails of many other animals.

rose

FLAUNTING FRAGRANCE   By comparing a sweet-smelling Papa Meilland rose (shown) with a bland bloom, researchers discovered a surprising enzyme critical to roses' aroma-making.

Woolly mammoths

Woolly mammoths were fat, hairy and could tolerate extreme cold. Now researchers have tracked down some molecular changes that contributed to those adaptations.

Life & Evolution

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