By the 1920s, California had lost all of its grizzly bears—once considered a distinct species and an emblem of the state.
Preconceptions skew our view of the biggest killer in the developed world, atherosclerosis.
Across the Pacific Ocean, plastics, plastics, everywhere
After terrestrial hermit crabs remodel snail shells, the superior homes become fiercely contested among later generations.
An invertebrate inventory of White Sands National Monument.
Once all the rage to build, more and more dams are coming down
Elephant populations continue to dwindle in Tanzania.
With proper safeguards, water currents can be harnessed out of sight.
Vulnerable everywhere in the wild, lions already face regional extinction.
Reef-building sponges are giving up their long-held secrets.
The flexible neck of the Amazon River dolphin let it hunt masterfully in the muddy shallows of the Amazon Basin.