Clever fly offers lessons on advanced predator adaptations

The saffron robber fly (Laphria saffrana) is an extremely fast bee-colored hunter that has to determine, while perched, which insects it wants to chase and eat. This is complicated by the fact that its eyes have poor resolution, ...

Scientists discover how a group of caterpillars became poisonous

The Atala butterfly (Eumaeus atala) and its five closest relatives in the genus Eumaeus like to display their toxicity. This sextet's toxicity comes from what they eat as caterpillars: plants called cycads that have been ...

Moths big and small are vanishing from southern US cities

Insects of all stripes are in the midst of a vanishing act, a catastrophic sleight-of-hand occurring so rapidly that scientists can't keep up. Things get even trickier when you consider that insects have a complex life cycle ...

Spider's distribution differs by urban habitat

The concept of urbanization rests on the population distribution of human beings, more than 50% of whom now live near large, often densely packed groups of other people. But the consequences of that urbanization—shifts ...

Sloths are far more adaptable than we realised

Unless you live in the tropical rainforests of South or Central America, most of the sloths you'll encounter will be two-toed sloths. This is because they are able to eat quite a varied diet and are therefore relatively easy ...

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