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Magellanic penguin on Argentina's coast Skeleton of a Magellanic penguin. Magellanic penguins are medium-sized penguins which grow to be 61–76 cm (24–30 in) tall and weigh between 2.7 and 6.5 kg (6.0 and 14.3 lb). [3] The males are larger than the females, and the weight of both drops while the parents raise their young.
The Galapagos Penguin: A Study of Adaptations for Life in an Unpredictable Environment. P. Dee Boersma , also known as Dee Boersma (born 1946) is a conservation biologist and professor at the University of Washington , where she is Wadsworth Endowed Chair in Conservation Science. [ 1 ]
Some examples of birds that have lost the ability to fly in favor of an aquatic lifestyle include: Penguins: one of the most highly adapted birds for swimming, penguins swim via lift produced by their wings and demonstrate a highly streamlined body shape that reduces drag. Flightless cormorant; Magellanic flightless steamer duck
Penguins evolved their wing structure to become more efficient underwater at the cost of their efficiency in the air. [ 28 ] The only known species of flightless bird in which wings completely disappeared was the gigantic, herbivorous moa of New Zealand , hunted to extinction by humans by the 15th century.
Southern rockhopper penguin: Eudyptes chrysocome: 2 460 000 [21] VU [21] [21] Only mature individuals were included in the count (1.23 million pairs); population has declined 34% in the past 37 years. [21] Magellanic penguin: Spheniscus magellanicus: 2 600 000 [22] LC [22] [22] Only mature individuals were included in the count (1.3 million ...
Chinstrap penguin. Penguins are birds in the family Spheniscidae in the monotypic order Sphenisciformes. [1] They inhabit high-productivity marine habitats, almost exclusively in the Southern Hemisphere; the only species to occur north of the Equator is the Galapagos penguin.
The penguins are a group of aquatic, flightless birds living almost exclusively in the Southern Hemisphere. Most penguins feed on krill, fish, squid, and other forms of sealife caught while swimming underwater. Four species have been recorded in Uruguay. King penguin, Aptenodytes patagonicus (V) Magellanic penguin, Spheniscus magellanicus
A 27-year study of the largest colony of Magellanic penguins in the world, published in 2014, found that extreme weather caused by climate change kills 7% of penguin chicks in an average year, accounting for up to 50% of all chick deaths in some years. [71] [72] Since 1987, the number of breeding pairs in the colony has reduced by 24%. [72]