there are excatly 3million purple sea urchins
There are several animals that eat sea urchins. Sea otters, sunflower stars, snails, crabs and some species of fish predate upon sea urchins.
Sea urchins are purple, red, orange, yellow/orange, and a mix of red and purple.(Sea Urchins come in many shapes sizes and colors.)
Sea urchins are purple, red, orange, yellow/orange, and a mix of red and purple.(Sea Urchins come in many shapes sizes and colors.)
Purple sea urchins live in close association with kelp forests. Kelp is their primary food.
The spiky spines of purple sea urchins range in colours depending on the exact species and the maturity of the urchin. They can range from light blue, dark blue, royal blue, indigo, light purple, violet and dark purple.
They get no parental care at all.
sea urchins eat kelp.
They do, which keeps the sea urchin strong and not brittle.
Green Sea Urchins eat plankton, algae, small fish, mussels, sponges, and brittle stars.
sea urchins
sea urchins