Mollusks do indeed migrate. It is a time consuming struggle. Every November 17th, mollusks sprout legs and they start to crawl to the Baltic Sea. This Sea is over 300,000,000 miles away and many mollusks die along the way. There are many predators against mollusks.
For example, razor clams have to avoid predators like the clown fish. The mucous on the clown fishes' skin is magnetic, and there is a certain particle that has not a positive, not a negative, not a neutral charge but an optimus charge that is embedded in the razor clam's shell which pulls it towards the clown fish. Sadly, when the clam comes in contact with the clown fish, it is absorbed into the clown fishes skin.
That's why the razor clam is close to extinction. Marine Biologists have been trying to set up a tube called the "Tubman Tube" that leads the mollusks to the Baltic Sea. The tube travels along the ocean floor and all mollusks enter it. A current pushes them to safety. This idea has only recently been created and is still in progress. The process has not been affective yet and has actually wiped out half of the mollusk population because they get trapped in the tube. However, the biologists have high hopes for the future.
Monarch butterfly, which may migrate from Canada to Mexico.
far far away
uhh ravens don't migrate at all!
7700miles
Arctic terns migrate all the way to the coast of Antarctica.
5000+ miles
They migrate by moving their four legs and crowing
Depends on breed. 100s miles to migrate.
It is unknown, but probably thousands of miles
you need to migrate it from pal park as far as i know.
swans do fly far
Studies have revealed a couple reasons lobsters march in a line; one is a significant reduce in drag in the liquid medium which has a payoff over the long distances they migrate. Another is for defense; when attacked the lead lobster turns around and they arrange in a defensive formation.