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Anonymous users2024-02-08The migratory animals are as follows:
1. Wild goose:In order to survive, geese migrate back and forth between breeding grounds and wintering grounds every year, and their migration has a strong time rhythm, and the ancient Chinese have long noticed the relationship between migratory bird migration and seasonal changes.
2. Swallow:Swallows are a migratory bird that comes from the south in March every year, as if they had flown back from the south overnight, and they choose a family's house to build a nest and lay eggs, incubate eggs and brood. After a busy summer, when the weather cools down in late autumn, they fly to the warmer south to spend the winter.
3. Salmon:Salmon, also known as salmon, is a spectacular scene in Alaska where tens of thousands of salmon migrate from the sea to the river, gather by the river to spawn and die.
4, Butterfly King:This large orange-brown butterfly is able to migrate long distances as the seasons change. Every spring, the butterflies always fly in droves from Central America all the way to Canada; In the fall, it returns to Mexico by the same route, a journey of 4,500 kilometers that will take several months.
5. Reindeer:Reindeer are one of the longest migratory mammals of the land mammals. Reindeer do not fly as described in fairy tales, and they may be more than willing to have such abilities themselves.
In fact, reindeer have to migrate 6,000 kilometers. They pass through spruce forests and mountains in the north to the treeless shores of the Arctic Ocean, where they return the same way.
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Anonymous users2024-02-07Animals migrate for the following reasons: searching for food, hibernating, escaping bad weather, reproduction, etc.
1. Look for food
Food is associated with reproduction, as most animals migrate to places where there is enough food for their offspring to survive.
2. Hibernation
Hibernation is essential for the survival of some animals, and a good example of this animal is the small brown bat. In the summer, these creatures live in trees, while they migrate to caves to hibernate in the winter.
3. Escape from bad weather
Most migratory birds migrate because of the change of seasons, and the Arctic Tern is a perfect example of this, as this bird experiences two summers in a year instead of one, thanks to its migration.
4. Reproduction
One of the most common reasons for migration is for animals to find suitable breeding grounds, with crustaceans such as many species of crabs living in the deep sea but going to shallow waters to breed before returning to deeper waters. Amphibians like frogs and toads alternate between breeding ponds and large lakes.
What are the migratory animals?
1. Birds
About 18% of the world's 10,000 bird species migrate due to seasonal changes in climate. Most of these birds fly from north to south. Summer in the north is usually the season for birds to forage and breed, while winter is the season for them to migrate south to warmer places.
For example, the Arctic tern migrates from north to south each year, covering a distance of about 12,000 miles.
2. Fish
Unlike birds, fish do not always migrate long distances, as they may end up migrating in the same place. For example, if a fish inhabits a huge lake and eventually changes its habitat, the migration time will be short, however, some fish can travel hundreds of miles away.
3. Insects
Insect migration usually occurs between winged insects, such as dragonflies, butterflies, and locusts. For these two butterflies, the group that started the migration was not the same butterfly that completed the journey. The reason for this is that because butterflies mate and reproduce in this process, the new generation of butterflies is the generation that has completed the migration.
4. Mammals
A good example of this migration is the famous wildebeest migration in the Serengeti National Park in Africa. In addition to wildebeest, other migratory species include zebras and antelopes. Interestingly, these groups can change their direction, but depending on environmental conditions.
The migratory animals are as follows:
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The methods of animal hibernation include collective hibernation and individual hibernation, collective hibernation is a group of animals gathering together to warm up and hibernating, such as snakes; Individuals hibernate by finding a place to hibernate on their own, such as a tortoise.
The hibernation of animals is entirely a protective action against the unfavorable environment. The main factors that cause hibernation in animals are the decrease in ambient temperature and the lack of food. Scientists have experimentally proven that hibernation in animals causes a decrease in the function of the thyroid gland and adrenal glands. >>>More
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