The platypus is one of the most unusual creatures in the animal kingdom. The platypus has a paddle-shaped tail, a sleek, furry body, and a flat bill and webbed feet. The first time a stuffed platypus was brought from Australia to Britain, people thought a trickster had sewn two animals together, according to London's Natural History Museum.

The correct form of the venomous mammal is platypuses. Males have a spur on their hind feet. The spurs and venom help males compete for mates, according to the Australian Platypus Conservatory. The venom can cause pain and swelling, but it is not life threatening to humans.

Egg-laying mammals and peacock spiders are some of Australia's strangest creatures.

All of the monotremes, or egg-laying mammals such as the platypus and echidna, lost their stomachs during the course of evolution.

All of the monotremes, or egg-laying mammals such as the platypus and echidna, lost their stomachs during the course of evolution. (Image credit: worldswildlifewonders Shutterstock)

Size and appearance

According to the Australian Museum, adult male platypuses can range in length from the tip of the bill to the tip of the tail. Adult females range in length from 14 to 21.6 inches. Adult males weigh between 1.7 and 6.6 lbs. Females weigh between 1.3 and 3.7 lbs. The weight is between 0.6 and 1,7 kilograms.

RECOMMENDED VIDEOS FOR YOU...

Live Science reported that scientists have found fossils that suggest ancient platypuses were larger than the modern variety.

The thick fur of platypuses helps them stay warm underwater. Most of the fur is dark brown, except for a patch of lighter fur near each eye and a lighter fur on the underside. Live Science previously reported that platypuses have brown fur that glows green and blue. It is possible that the eerie glow may help reduce the animals visibility to predators, but it may not have any ecological function. Scientists are looking into this question.

A platypus has extra skin on its feet that acts like a paddle when it is swimming. The claws of platypuses are more pronounced when they are on land. According to a 2001 report in the Journal of Experimental Biology, the animals walk on their knuckles to protect the webbing.

The bill of a platypus resembles that of a duck and has a smooth texture that1-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-6556 It's flexible and rubbery. The platypus can navigate underwater and detect movement of food, such as shrimp, thanks to the tens of thousands of sensory receptors on the bill.

Photographs of museum specimens in ultraviolet light revealed the platypus's secret glow.

(Image credit: Mammalia 2020; 10.1515/mammalia-2020-0027)

Venom

A toxinologist at the University of Melbourne in Australia wrote a post about platypuses carrying venom glands near their pelvises and hollow spurs on their hind legs. Young females lose their spurs in the first year of life.

During breeding season, when males use their venom to compete for mates, the venom glands of adult males change in size. The male wraps its legs around its victim and drives the spurs through the animal's flesh to inject its venom.

The venom contains a cocktail of more than a dozen proteins that belong to three major classes of toxins. She noted that this venom is not lethal to humans, but it can cause swelling and pain, and it can disrupt wound healing. In humans, the pain from a platypus sting can be treated with nerve blockers, which block specific nerve cells from sending signals to the brain.

Habitat

According to the Australian Platypus Conservatory, platypuses live in Australia in a range that extends from western Victoria to about as far north as Cooktown inQueensland. There are platypuses on King Island, as well as on the island where they were introduced by humans in the early 1900s.

Throughout their habitat range, platypuses occupy freshwater systems, including river basins, lakes, ponds and streams. The animals spend about 10 to 12 hours a night in the water, hunting for food, and are most active during the night. The Australian Museum says they can stay underwater for 30 to 140 seconds.

During the day, they hide out in burrows on the shore, where tunnels open up into underground chambers, according to the San Diego Zoo. According to the Australian Platypus Conservatory, platypuses take shelter under rock ledges.

The platypuses are only on one side of the world. They have been found in a number of places. The big tails of platypuses store extra fat for energy and keep them warm in cold weather.

illustration depicting multiple platypuses

(Image credit: Zina Deretsky, National Science Foundation.)

Diet

Theypuses eat meat but not plants. They hunt for food in the water. According to the Australian Museum, the animals close their eyes, ears and nostrils while swimming to find food at the muddy bottom of the river, stream, pond or lake.

When platypuses find something interesting, they scoop it up in their bills, store it in their cheek pouch and swim to the surface. Shrimp, swimming beetles, water bugs and tadpoles are some of the things the animals eat. According to the Australian Museum, platypuses have been observed eating insects that they catch at the water's surface.

After coming up from a dive, platypuses float atop the water and chew their food using grinding plates in their mouths. The animals sometimes pick up mud and sand in their cheek pouches, and as they eat, they excrete it through grooves in their lower jaws.

Baby platypuses

mammals give birth to young Eggs are laid by platypuses. The platypus is the only mammal that lays eggs that is known as a monotreme. There are only two places where echidnas are found.

When female platypuses are ready to have their young, they burrow into the ground on the riverbank and seal themselves into tunnel rooms. Each female puts her eggs between her rump and tail to keep them warm. The eggs hatch and the bean-size babies nurse for three to four months inside their burrow, according to the Australian Museum.

Baby platypuses can swim on their own, according to the Australian Platypus Conservatory.

Taxonomy

The platypus is categorized by the Integrated Taxonomic Information System.

  •  Kingdom: Animalia 
  •  Phylum: Chordata 
  •  Class: Mammalia  
  •  Order: Monotremata 
  •  Family: Ornithorhynchidae  
  •  Genus and species: Ornithorhynchus anatinus 

The platypus feeds its young with milk excreted from its belly.

(Image credit: Laura Romin and Larry Dalton)

Conservation status

The platypuse is not currently considered to be threatened by the International Union for Conservancy of Nature, but it is vulnerable to extinction in the near future.

The platypus was first listed as near threatened in 2016 after scientists observed a decline in the species' overall numbers.

Additional resources and readings

Bibliography

The Australian Platypus Conservancy. The platypus has a biology. The Australian Platypus Conservancy. On February 11, 2022, from theplatypus.asn.au/biology/

The Australian Platypus Conservancy. The numbers and distribution. The Australian Platypus Conservancy. The distribution-numbers.asn.au website was updated on February 11, 2022.

A. D. A. Divljan, June 16. There is a platypus. The museum of Australia. On February 11, 2022, from the Australian Museum, there was a story about theplatypus.

Fish, F. E., Frappell, P. B., Baudinette, R. V., and MacFarlane, P. M. (2001) The platypus Ornithorhynchus anatinus has energetics. The Journal of Experimental Biology, 204(4), 797, was published.

The Integrated Taxonomic Information System is an information system. Shaw wrote about Ornithorhynchus anatinus. There is a taxonomic information system. On February 11, 2022, from www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic.

The International Union for the Preservation of Nature. There is a platypus. There is a red list of threatened species. On February 11, 2022, from www.iucnredlist.org/species/40488/21964009

National Geographic. There is a platypus. National Geographic. The facts about the platypus can be found at Nationalgeographic.com.

B op den brouw was published in July of 2020. The platypus has a wide world of venom. The School of Biomedical Sciences is located at the University of Melbourne. The department of biochemistry-and-pharmacology at the University of Notre Dame has a website.

E. Osterloff. There is a platypus puzzle. There is a museum about natural history. The puzzle of the platypus was discovered on February 11, 2022.

The San Diego Zoo. There is a platypus. Wildlife Explorers at the San Diego Zoo. On February 11, 2022, from https://sdzwildlifeexplorers.org, there was a picture of a platypus.

Live Science staff writer Nicoletta Lanese updated the article on Feb. 18, 2022.

It was originally published on Live Science.