Feral hogs are one of the most destructive invasive species in North America, harming land, crops and wildlife.
Polar bears and wolves may get the glory, but small predators like weasels, foxes and their cousins play outsized ecological roles. And many of these species are declining fast.
Plankton, some of the smallest organisms on Earth, are leading big changes in the ocean.
Megalodon, the world’s largest known shark species, swam the oceans long before humans existed. Its teeth are all that’s left, and they tell a story of an apex predator that vanished.
These tiny organisms play a huge role in fighting climate change, but they're under threat.
Hurricane Harvey destroyed the fishing infrastructure of Aransas Bay and reduced fishing by 80% over the following year. This removed humans from the trophic cascade and whole food webs changed.
Insect populations are falling as what they eat becomes more like iceberg lettuce and less like kale.
/
1
