Does moss or lichen grow in your schoolyard or park? If so, you probably have water bears! These endearing and hardy micro-animals are fun to hunt for and easy to observe with a dissecting microscope at 40x magnification. Also known as tardigrades, water bears resemble gummy bears with eight legs. Don’t let their cuteness fool […]
Tag Archives: evolution
This Animal Might Save Your Life!
Horseshoe crabs have blue blood that contains a special substance that clots around bacteria to prevent infection from spreading. Called LAL for short, it is used to test medical equipment for bacterial contamination. If you’ve ever had a shot, stitches, or surgery, you can thank horseshoe crabs for helping to keep you safe! Horseshoe crab […]