What is the most persistent animals?

The most persistent animals are often considered to be migratory species, such as the Arctic Tern, which travels thousands of miles annually between its breeding and wintering grounds. Other examples include salmon, which navigate upstream against strong currents to spawn, and the desert tortoise, known for its ability to survive in harsh environments with scarce resources. Persistence can also be seen in species like honeybees, which tirelessly gather nectar and pollen despite challenges. These animals demonstrate remarkable resilience and determination in their life cycles.