Snakes are often seen as pests or even dangerous creatures, but they play a vital role in the world’s ecosystems. They help to control populations of rodents, insects, and other small animals. They also help to disperse seeds and nutrients.

Snakes are found on every continent except Antarctica, and they come in a wide variety of shapes and sizes. Some snakes are venomous, while others are not.

Venomous snakes use their venom to subdue their prey. Venom can be injected through hollow fangs or through the skin. Venomous snakes are a major source of human and animal death, but they also play an important role in the ecosystem.

Nonvenomous snakes use a variety of methods to capture their prey, including constriction, swallowing whole, and biting and tearing. Nonvenomous snakes are an important part of the food chain, and they help to keep populations of rodents and other small animals in check.

In addition to their role as predators, snakes also play a role as seed dispersers. When snakes swallow seeds, the seeds can survive the digestive process and be excreted later. This helps to spread seeds to new areas, which can help to promote plant diversity.

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Snakes also help to disperse nutrients. When snakes eat animals, they break down the animals’ bodies into nutrients that can be recycled back into the ecosystem. This helps to keep ecosystems healthy and productive.

Snakes are an important part of the world’s ecosystems. They help to control populations of pests, disperse seeds, and disperse nutrients. Without snakes, the world would be a very different place.


  • The American Museum of Natural History
  • The National Geographic Society
  • The Smithsonian Institution