ExplorersWeb on MSN11 个月
Natural Wonders: Weirdest Animal Eggs
The eggs are often called “mermaid purses.” The skate stays in its purse for 15 months before hatching. It exits through a ...
Hear the different songs of three lacewing flies in this interactive activity ... species of shellfish that deposit their sperm and eggs directly in the water. Even if the sperm and eggs of ...