Mating Mallard Ducks

Unveiling Nature’s Mysteries: Mutant Sea Stars, Junk Jellyfish, and Duck Sex

Confront nature's mysteries, scientists find mutant sea stars surviving in warming waters and that sexual competition forces ducks to grow longer penises.
dead fish float in a polluted river

A Dead Fish “Vitamin Pill,” Microbes that Put Dinner on the Table, and a Truck that Runs On Cow Manure

From microbial biochemistry to recycling dead fish to manure-to-energy converters, here’s this week’s most surprising sustainability news.
Orca whale

How Killer Whales Kill

Orcas may look cute, but don’t be fooled. They display some of the most sophisticated hunting techniques of any animals on Earth.