Physically fit frogs have faster-changing genomes, says a new study of poison frogs. Stretches of DNA accumulate changes over time, but the rate at which those changes build up varies considerably between species, researchers say.
Physically fit frogs have faster-changing genomes, says a new study of poison frogs. Stretches of DNA accumulate changes over time, but the rate at which those changes build up varies considerably between species, researchers say.