Are monarch butterflies endangered? Monarch population numbers are falling and it's clear that these butterflies need our ...

From 2003 to 2019, amateur butterfly enthusiast Harlan Radcliff spent his lunch breaks observing butterflies on the grounds ...

Monarch butterflies are unique in their migration patterns. Eastern monarchs travel between Mexico and the U.S., spending ...

The study was one of several that assessed the effects of climate change on three species of butterflies whose populations are declining.

That in itself is a tricky manoeuvre: the caterpillar hangs from a small patch of silk while it takes its skin of. The trick ...

Because so many eggs are lost to predators and disease, female butterflies will lay hundreds of eggs at once. The eggs typically hatch somewhere between a few days to a few weeks. Only one or two out ...

The study was one of several that assessed the effects of climate change on three species of butterflies whose populations ...

The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...