nothing much because they are very fast runners.
the sunflower sea star
Sunflower
The correct term is a Sea Star. The sea star bearing [up to] nine arms is called a "fragile star" and is also a close relative to the "sunflower star".
sea otters and sharks
a sea star avoids predators because it has spikes on it so it's predators can't eat it
The most common predators of sand dolars are ocean pouts and sunflower starfish. Sand dollars do not have many predators.
Sea lions are hunted by transient killer whales (orcas) and some sharks.
i thing a shark and squid also an octopus
Some species of sea stars, such as the Brown Serpent Sea Star and the Blue Sea Star, are classified as detritivores that feed on decomposing organic matter and therefore contribute to decomposition. Many other species are predators though, that feed on oysters, clams, snails, mollusks, or any other prey too slow to avoid the sea stars.
Some predators include crabs, rays, andd tuna
The sea star's predators are birds, otters, and humans. This is according to http://library.thinkquest.org/J001418/star.html. Sea Stars (like Solaster dawsoni) also prey on other species of sea stars (like Pycnopodia helianthoides).
Some species of sea stars, such as the Brown Serpent Sea Star and the Blue Sea Star, are classified as detritivores that feed on decomposing organic matter and therefore contribute to decomposition. Many other species are predators though, that feed on oysters, clams, snails, mollusks, or any other prey too slow to avoid the sea stars.