Quick answer
Otters feed on fish, crustaceans and invertebrates, adjusting with season, age, and what is abundant in Rivers, lakes, wetlands, and coasts. That label is a preferred pattern, not every item an individual might sample.
Key takeaway
Otters feed on fish, crustaceans and invertebrates, adjusting with season, age, and what is abundant in Rivers, lakes, wetlands, and coasts. That label is a preferred pattern, not every item an individual might sample.
Otter diet overview
Otters (Lutrinae) are best summarised as Carnivore (fish, crustaceans, invertebrates). Anatomy and habitat (Rivers, lakes, wetlands, and coasts) decide whether they hunt, graze, filter, scavenge, or mix strategies across the year.
How otters find food
Energy-rich foods are prioritised when available; lean seasons force broader diets or longer travel. Young animals may eat different items or receive food from parents.
Otter role in the food web
As predators or scavengers, otters move nutrients and influence prey or vegetation.
Feeding and human conflict
Never feed wild otters. Habituation raises injury risk and can lead to lethal management. Captive diets must match species needs, not generic pet food rules.
Behavior and play
Otters are intelligent, social, and famously playful, often seen sliding down muddy or snowy banks and wrestling with one another. This play helps young otters develop hunting and social skills. They are superb swimmers, propelling themselves with powerful tails and webbed feet, and can close their nostrils and ears underwater. Sea otters are known for using rocks as tools to crack open shellfish.
Diet and hunting
Otters are carnivores that hunt in water, feeding mainly on fish, crayfish, crabs, frogs, and other aquatic animals. They have sensitive whiskers that detect the movements of prey in murky water. With a high metabolism and no thick blubber layer, river otters must eat frequently to stay warm, while sea otters consume up to a quarter of their body weight each day. Many otters bring prey to the surface or land to eat.
Sources
Otter FAQs
What do otters eat?
Otters feed on fish, crustaceans and invertebrates, adjusting with season, age, and what is abundant in Rivers, lakes, wetlands, and coasts. That label is a preferred pattern, not every item an individual might sample.
What is the scientific name of the otter?
Lutrinae — used in research and conservation listings for otters.
Where do otters live?
They are associated with Rivers, lakes, wetlands, and coasts. Local presence depends on food, cover, and human land use.
What is the conservation status of otters?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.