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Salmon and Eels do this.
Process migration is an extreme form of computation migration. In computation migration, an RPC might be sent to a remote processor in order to execute a computation that could be more efficiently executed on the remote node. In process migration, the entire process is transported to the remote node, where the process continues its execution. Since process migration is an extension of computation migration, more issues need to be considered for implementing process migration. In particular, it is always challenging to migrate all of the necessary state to execute the process, and it is sometimes difficult to transport state regarding open files and open devices. Such a high degree of transparency and completeness is not required for computation migration, where it is clear to the programmer that only a certain section of the code is to be executed remotely and the programmer.
In Unix (and Linux) this is known as "forking".
A male Betta will only tolerate a female in with him during the courting and spawning process. Once this (spawning) is over he will kill her if she is left in with him.
flooding upstream as reservoir fillsstopping salmon migration to spawning streamssilting of the dam reservoirloss of river beaches downstreamheating of downstream river wateretc.
fartura
No, after spawning the male cares for the eggs and fry for the first few days after hatch. The male chases the female away after spawning is finished and she has no further input on the raising process. A male will often kill a female who's not removed from the spawning tank soon after the process is over as he becomes very protective and considers all other fish including the mother as an invader.
Spawning is breeding goldfish
it end 1660
migration
migration
In routine migrations (like the monarchs to and from Mexico and salmon to their spawning grounds) the migration is innate; in most r-species --those with large broods and little parental care after birth -- migration will occur regardless if there is an adult that has undergone migration to teach them. In k-species -- small broods and intensive parental care, like humans or elephants -- migration must be taught, though these are considerably less intensive migrations, and are frequently within the same habitat, unlike the migrations mentioned above in which the animals move to a different climate