New research shows climate change may push monarch butterflies farther south and make their long migration harder in the ...

Add Yahoo as a preferred source to see more of our stories on Google. Extreme heat, one of many symptoms of climate change, is making monarch butterflies vulnerable to parasites, according to a ...

Suitable habitat for migrating monarch butterflies will shift southwards because of climate change, according to a study ...

Monarch butterflies have always been remarkably resilient. Every fall, these delicate orange-and-black travelers set out on a journey so improbable it borders on myth, flying some three thousand ...

In the early 1990s, Keith Willmott and a friend, both undergraduate students from the United Kingdom, arrived in Ecuador with impressionable minds and big aspirations. Willmott initially imagined ...

The insects’ brilliant hues evolved in lush ecosystems to help them survive. Now they are becoming more muted to adapt to degraded landscapes – and they are not the only things dulling down ...