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Salmon eggs hatch in streams before making their way to the open ocean, after around 7 years, the salmon return to their birthplaces to lay their eggs and die. The salmon use spatial knowledge and environmental clues to navigate their way back home.
This is an example of a Fixed Action Pattern, if an egg has rolled out of the nest, the Greylag Goose mother instinctively goes to the egg and rolls it back into the nest. Even if the egg rolls out and then is picked up by something, the Goose will go the spot where the egg rolled and will go through the motions of rolling it back into the nest, even though it is no longer there.
This is an example of social behavior amongst elephant species in which many elephants stand around the carcass of a deceased elephant and halt their intense eating cycle to explore the dead body. Elephants live in large herds and are generally very social creatures which may explain why they react this way to death.
The Gray Whale Migration is an example of an annual migration pattern and the various adaptive defenses the Gray Whales perform on their only predator, the Orca Whale. The Gray Whales journey to warmer waters to provide a better chance of survival for their young, during the mating season.