10 Bizzare Evolutionary Behaviors That Help Animals Survive
7. Migration

Few animals embody the spirit of adventure quite like the Arctic tern. This small seabird holds the record for the longest migration of any species, traveling from the Arctic to the Antarctic and back each year. That’s roughly 44,000 miles annually! Many other species, from monarch butterflies to humpback whales, undertake similarly mind-blowing migrations, using the sun, stars, and even Earth’s magnetic field to guide their way. Migration is a testament to endurance, instinct, and the incredible navigational skills baked into animal DNA.