Glow-in-the-Dark Fish Have Been Lighting Up the Oceans for 150 Million Years Bioluminescence has evolved at least 27 separate times in fish.
Bees Commit Suicide to Protect the Colony From Deadly Mites The weakest bees foster survival of the colony.
Zebra Stripes May Confuse Blood-Sucking Flies Scientists examine zebra stripes through the eyes of a fly.
Killer Whales Have a Rich Culture That Has Shaped Their Evolution The only known non-human in which culture and genome have co-evolved.
Neurotoxins Lead Newts to New Breeding Sites Fierce competition can poison the breeding pool for some males.