00:00How Human Pressure Forces Rapid Evolution in Urban and Threatened Wildlife
00:04A city moth rests on soot-dark brick with pale wings.
00:10Human pressure can push animals to change color, behavior, breeding, and survival strategies.
00:16Peppered moths darkened on polluted British trees,
00:20then lighter moths returned as cleaner air changed the bark again.
00:24African elephants in Mozambique produced more tuskless females
00:28after heavy poaching targeted ivory-bearing adults.
00:31Atlantic tomcod in the Hudson River evolved resistance to PCB pollution,
00:36surviving chemicals that harmed many fish.
00:39Bedbugs spread through apartments and hotels,
00:42while some populations evolved resistance to common insecticides.
00:47Mosquitoes breed in subway tunnels and city drains,
00:50adapting to underground spaces with different temperatures and hosts.
00:53Anole lizards in Florida grew larger toe pads
00:57after invasive brown anoles pushed them higher into trees.
01:01Urban coyotes moved through Chicago streets at night,
01:04adjusting hunting routes around traffic, people, and garbage.
01:08Swallows nesting near highways developed shorter wings in some areas,
01:12helping quick takeoffs near moving cars.
01:15Killifish in polluted coastal waters evolved tolerance to industrial chemicals,
01:20surviving in places that killed sensitive fish.
01:24Trophy hunting can favor smaller horns or tusks
01:27when hunters remove the biggest males from breeding groups.
01:31Pollution, hunting, highways, buildings, chemicals,
01:35and invasive rivals now act like powerful filters on animal bodies.
01:40A moth lifts from black brick while city lights glow across the wall.
