The Lepidoptera have, over millions of years, evolved a wide range of wing patterns and coloration ranging from drab moths akin to the related order Trichoptera, to the brightly colored and complex-patterned butterflies.
Definition of sea oat. 1  1 : a tall grass (Uniola paniculata) that has panicles resembling those of the oat, grows on the coast of the southern U.S., and is useful as a sand binder âusually used in plural. 2  2 sea oats plural : a cluster of yellowish vase-shaped egg cases of a whelk of the genus Thais : sea corn.
The sea squirt is a urochordate, or tunicate, found in shallow ocean waters around the world. The barrel-shaped adult squirt attaches to rocks, piers, boats and the sea bottom, and feeds by siphoning seawater through its body and using a basket-like internal filter to capture plankton and oxygen.