Researchers find that conserving marsupials on a predator-free island dampens their avoidance behaviors, which could mean trouble for their reintroduction to mainland Australia.
Guppies with experimentally shrunken brains produced more offspring than guppies bred for larger noggins, confirming a long suspected tradeoff of bigger brains.
Columbia University evolutionary ecologist Dustin Rubenstein explains just why it's so interesting and important to find slime molds that engage in a form of agriculture.