The thousands of red crabs that inhabit Christmas Island, in Australia, have begun their annual migration.
Every year, millions of red crabs emerge from the forest and head towards the ocean through the island’s roads.
Red crabs and a natural spectacle
Such is the situation that some roads are closed so that the crustaceans can safely cross the island and reach the ocean, where they start their reproduction, according to Parks Australia.
In images shared by this Australian government service, thousands of red crabs can be seen crossing streets, climbing bridges, and traversing roads to reach the water, while passersby, accustomed to this situation, barely react.
Migration process
The migration usually begins with the first autumn rains, during October or November, although sometimes it is delayed. It is the male crabs who lead the migration, and then the females join them.
After mating, the males return first to the forest, while the females stay in burrows for about two weeks to lay eggs. Each female crab can produce up to 100,000 eggs, which they will deposit in the ocean.
Australia’s measures to ensure safe travels for the crabs
Due to the multiple obstacles that the crabs must face during their journey, the Australian authorities have opted to create special bridges and underground crossings for them. In addition to:
- Traffic regulation: Measures are implemented for drivers to slow down and avoid running over them.
- Education: Authorities carry out awareness campaigns so that the local population is aware of their importance and takes care of them.
- Protected areas.
These small animals, the size of a hand, play an important role in the local ecosystem, both marine and terrestrial.
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