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The African penguin (Spheniscus demersus), also known as Cape penguin or South African penguin, is a species of penguin confined to southern African waters. It is the only penguin found in the Old World. Like all penguins, it is flightless, with a streamlined body and wings stiffened and flattened into flippers for a marine habitat. Adults ...
Magellanic penguins feed in the water, preying on small pelagic fish, hagfish, [5] cuttlefish, squid, krill, and other crustaceans, and ingest sea water with their prey. Their salt-excreting gland rids the salt from their bodies. Adult penguins can regularly dive to depths of 20 to 50 m (66 to 164 ft) deep in order to forage for prey.
Other birds like petrels, sheathbills, and gulls also eat the chicks. Dogs preyed upon penguins while they were allowed in Antarctica during the age of early human exploration as sled dogs, but dogs have long since been banned from Antarctica. [96] Instead, adult penguins are at risk at sea from predators such as sharks, orcas, and leopard ...
The plight of penguins can serve as a guidepost for what needs to happen if we are to preserve life on both land and sea. The plight of penguins can serve as a guidepost for what needs to happen ...
The African penguin joins the list of species said to be threatened by climate change - and overfishing. Researchers from the UK and South Africa say penguin numbers in the Benguela upwelling ...
The black and white coloring is thought to be particularly important for camouflaging the emperor penguin from predators while they swim in the ocean. ... Emperor penguins eat mostly fish but also ...
They eat small schooling fish, mainly mullet, sardines, pilchards and anchovies, [9] and sometimes crustaceans.They play a role in regulating the populations of the marine species they consume. At the same time, the adult Galápagos penguins are a food source for other predators such as sharks and whales.
This means primary producers become the starting point in the food chain for heterotroph organisms that do eat other organisms. Some marine primary producers are specialised bacteria and archaea which are chemotrophs , making their own food by gathering around hydrothermal vents and cold seeps and using chemosynthesis .