Evolution predictable for insects eating toxic plants

(Phys.org) -- The famous biologist Stephen J. Gould once asked: If we rerun the tape of life, would the outcome of evolution be the same? For years, scientists have questioned whether evolution is predictable, or whether ...

Mystery of monarch migration takes new turn

During the fall, hundreds of millions of monarch butterflies living in eastern North America fly up to 1,500 miles to the volcanic forests of Mexico to spend the winter, while monarchs west of the Rocky Mountains fly to the ...

Fruit flies watch the sky to stay on course

Insects, equipped with complex compound eyes, can maintain a constant heading in their travels, some of them for thousands of miles. New research demonstrates that fruit flies keep their bearings by using the polarization ...

Research reveals how monarchs fly away home

Monarch butterflies -- renowned for their lengthy annual migration to and from Mexico -- complete an even more spectacular journey home than previously thought.

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