What are tide pools and what lives in them?
Tide Pool Heartbeat
What are tide pools and what lives in them?

Where the ocean meets the rocks, something magical happens twice a day. When the tide pulls back, it leaves behind little pools — perfect bathtubs carved into stone, filled with seawater and secrets.
These are tide pools, and they're trickier than they look. Twice a day the ocean rushes in and covers them completely. Twice a day it drains away, leaving everything inside exposed to sun and air and hungry birds. To live here, you need to be tough.
