Seals live in the arctic and Antarctic. Some seal species depend entirely on the ice for survival where they give birth and nurse their pups. They search for food along the edge of the ice and beneath it.
Most seals never leave the ice pack. Six seal species live in the arctic: harp, hooded, ringed, bearded, spotted and ribbon. They make holes in the ice for fishing, and they protect their young in snow mounds. Polar bears are their primary predator. Only four species of seals live in Antarctica, but they far outnumber arctic seals. Killer whales are threatening predators, but the leopard seals are the primary cause of death.Learn More
Some squid species live in shallow waters near coastlines, but others live in deeper ocean waters. The California shoreline and Florida coast are popular spots. The lifespan of species that live in deeper waters is often longer because these spots offer more plentiful food and less hunting by humans.Full Answer >
Krill live in all the oceans of the world, the most abundant of which is Antarctic krill. This species, found in the Southern Ocean, has an accumulated weight of between 125 million to 6 billion tons.Full Answer >
Dolphins are equipped with blowholes on the crowns of their heads through which they breathe air when they reach the surface of the water. They are capable of holding their breath for up to 10 minutes.Full Answer >
The 42 known species of dolphins live in the waters of oceans and rivers all over the world. Dolphins are found everywhere, from shallow coastal waters to the deep of the open ocean, and they migrate to and from certain areas due to water temperature and food availability.Full Answer >