Get 5 Good Things in your inbox each week by subscribing to 5 Things right here. I’m not much of a hugger. Sure, I’ll bust out the warm fuzzies for relatives around the holidays but I’m not like, say, ...
Organisms that have evolved down “one-way” paths may lack the flexibility to respond to new selection pressures in particular ways and have to figure out new strategies to change. In lineages such as ...