This Week: Ancient water = ancient habitat?
In the News: Maggots, leeches, parasitic worms
Three gross “biotherapies”: Leeches suck blood after surgery. Maggots clear dead tissue from wounds. Parasitic worms fight ulcerative colitis.
How do dragonflies fly? How do bats catch insects hidden behind leaves? How do you make a temperature of 2 billion degrees? Why would anyone care?