What is a "siren"?

A siren is an aquatic salamander characterized by its elongated body, lack of hind limbs, and external gills. They inhabit freshwater habitats such as swamps, ponds, and rivers, often hiding in vegetation or burrowing in mud. Sirens are primarily nocturnal and feed on small invertebrates and sometimes small fish. They have a unique ability to breathe through their external gills and can remain submerged for long periods. With their secretive nature and adaptability to aquatic environments, sirens contribute to the diversity and ecological balance of their habitats.