Did you know? The color of a blue crab's eggs can tell you how close they are to hatching. As the eggs mature, they change from yellow to dark brown. This is because the crab in the egg eats the yellow yolk as it grows.
đź“·: Bruce Taterka / NOAA Teacher at Sea Program
ALT A female blue crab lays belly-up on a wooden dock, revealing her yellow egg sponge.