Related topics: species · genes · evolutionary biology

Female toads seek a good man—even if he's another species

The one thing about species that most people probably remember from high school science class is that when it comes to sex, they generally stick to their own kind. Hybrids happen, but they are usually thought to be accidental, ...

Worms discovered in the brain of lizard embryos for the first time

Researchers have discovered nematodes, or worms, in the brains of lizard embryos. This is the first time they have been found in reptile eggs, and it was previously believed that egg laying prevents parasites from being transmitted ...

How gliding animals fine-tuned the rules of evolution

A study of gliding animals has challenged the idea that evolutionary innovations—adaptations that bring new abilities and advantages—spur the origin of other new body types and other characteristics in descendent species. ...

Spider glue turns moths' defenses against them

If you've ever tried to stick tape to a dusty surface, you know the dilemma most spiders face when trying to catch moths. Moth wings are covered in tiny scales that slough off at a touch, allowing moths to escape dangers ...

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