Which are migratory animals? Below are some of these animals.
Among the 10,000 species of birds in the world, about 18% of them migrate due to changes in climate seasons. Most of these birds fly from north to south. Summer in the north is usually the time for birds to feed and breed, while winter is when they migrate south to warmer climates. For example, arctic terns migrate from north to south each year, a distance of about 12,000 miles.
Unlike birds, fish don’t always migrate long distances because they may end up in the same place. For example, if a fish inhabits a large lake and eventually changes habitat, the migration time is short, however, some species travel hundreds of miles.
Insect migration often occurs between winged insects such as dragonflies, butterflies and locusts. For both butterflies, the group that started the migration was not the same butterfly that completed the journey. The reason is that the butterflies mate and reproduce during this process, so the new generation of butterflies is the generation that completes the migration.
A good example of this migration is the famous wildebeest migration in Africa’s Serengeti National Park. Besides wildebeest, other migratory species include zebra and antelope. Interestingly, these groups can change their orientation, however depending on environmental conditions.
Other animals such as cetaceans including dolphins, whales and porpoises also migrate. Migrating crustaceans include the astounding Christmas Island red crab, which migrates by the millions every year.
Reasons for animal migration
Looking for food
Food is related to reproduction, as most animals migrate to breed where there is enough food for their offspring to survive.
Hibernation is essential to the survival of some animals, a good example of which is the little brown bat. In summer, these creatures live in trees, while in winter they migrate to caves to hibernate.
Avoid bad weather
Most migratory birds migrate because of the changing seasons, and the arctic tern is a perfect example of this, because of its migration, this bird experiences two summers in a year instead of one.
One of the most common reasons for migration is for animals to find breeding grounds suitable for breeding. Crustaceans such as many species of crabs live in the deep sea but come to shallow waters to breed before returning to deeper waters. Amphibians like frogs and toads alternate between breeding ponds and large lakes.
How do animals know which direction to migrate?
Experts in the field are still not sure how animals know the right direction, although a few theories have been proposed. One such theory is that animals use landmarks to orient themselves, examples of which include rivers and lakes.
Other scientists believe that the sun and stars are used to determine direction. Some animals’ keen sense of smell may also be how animals decide the right route, while others use Earth’s magnetic field.
After reading the above-mentioned inventory of why animals migrate and what migratory animals are there, I believe everyone understands it! The most common is the seasonal migration of birds. There are many animals in nature that need to migrate, and migration is also It is related to many factors.