it helps them by telling them when to wake up and where to go
The nouns in the sentence are hibernation and migration, compound object of the preposition 'by'.
hibernation
Animals lose their survival instincts in captivity this is because they are not exposed to their natural habitat. If these animals are brought back into the wild, they will most likely not survive.
Different animals have different survival instincts that help them to survive in the wild. Some animals have the ability to camouflage themselves and hide from predators.
Natural instincts are what help all animals to survive. Without them, we wouldn't know or feel the need to eat, reproduce, learn, evolve and improve our species.
So they can still survive whilst it is very cold over here and there is no food
it is a behavioral adaptation because it is doing it EX. a bear hibernates :-)
Wild animals do not make good pets. Animals have instincts that allow them to survive.
instincts,the determination to survive,and protection of their young
some animals that can survive the winter and not the summer go for long summer sleep.
In geography temperate zones lie between the tropics and the polar regions. This region are home to bison, wolves, coyotes, swift foxes, quail and prairie dogs. Temperate zone animals must utilize strategies like hibernation and migration to survive the sometimes harsh winters.
Hibernation is a state of inactivity and metabolic depression in animals characterized by lower body temperature, slower breathing, heart rate, and reduced metabolic rate. During hibernation, animals conserve energy and survive on stored fat reserves.