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Venomous or Poisonous Mammal? The Duck-Billed (Duckbill) Platypus

Updated on April 26, 2012
The Gila Monster is one of those venomous lizards!
The Gila Monster is one of those venomous lizards! | Source

I typically try to avoid any and all creatures that use venom as a defense. So that means I usually steer a wide berth around snakes . . . spiders, centipedes, and scorpions . . . wasps and bees. And then there are also lizards to consider. But now it has come to my attention there are also venomous mammals, several in fact.

Venom is usually delivered through fangs, such as those that are possessed by a snake or spider. Bees and wasps deliver their venom through a stinger. How would a small mammal produce and use venom to catch their prey, or to defend itself? That will depend on the mammal. Let’s take a look.

Platypus Habitat
Platypus Habitat | Source
Ankle Spur
Ankle Spur | Source

The Duck-Billed Platypus

An unusual creature, the duck-billed platypus, is one of these venomous mammals. The platypus lives on land and in freshwater streams, lakes and ponds in eastern Australia, including Tasmania. It tends to live on the water’s edge where it will dig its burrows into the bank, yet have water close by for hunting. The platypus has a territory of up to 4.4 miles (7 kilometers). A male’s territory will usually encompass the territory of 3 or 4 females. The platypus has a lifespan of 10-17 years.

The platypus is a very unusual looking creature. It could almost be described as a Frankenstein of the animal kingdom. It looks like someone took left over parts -- a duck’s bill, beaver’s tail, and otter’s feet (webbed) – and created an animal! Then to make it even stranger, even though a mammal, it was given the ability to lay eggs, and deliver venom! When scientists first discovered it, they found it to be so strange that they were convinced that it was a hoax! Imagine seeing a platypus for the very first time!

The male platypus has a spine or a spur (like a rooster) on its hind ankles. The venom is powerful enough to kill smaller animals, but is not lethal to humans. Although not lethal, the wound will cause excruciating pain, followed quickly with swelling that gradually spreads. The pain may persist for days or even months! The platypus does not use its venomous spur for hunting purposes. Instead, it uses it to defend itself and is capable of delivering a very painful sting. Although born with a spur bud, the female platypus is not venomous. In females, the spur bud sloughs off around one year of age.

Since only the male platypus has this venomous spur, and because the production of the venom increases during breeding season, it is thought that it might be used to assert dominance. It may also be used to defend its territory against competitors.

The Ankle Spurs are Visible in This Image. Click on image to see better.
The Ankle Spurs are Visible in This Image. Click on image to see better. | Source

The platypus is about the size of a small cat, growing to about 17-20 inches (43-50 cm) long and weighing between 1.5-5.3 pounds (700 g - 2.4 kg). Like one of its neighbors, the Tasmanian Devil, the platypus stores fat in its tail. The males are larger than the females.

Because the platypus’ legs and feet extend out from its body, its gait could be described as lizard-like.

As a mammal, the platypus is very unusual in its reproduction methods. It lays eggs instead of giving birth to live young! After the eggs hatch, the babies, called puggles, drink milk from tiny openings in the mother’s abdomen.

The platypus has been heard emitting a low growl when disturbed, and using other vocalizations while in captivity.

The platypus is unusual in another aspect – it is the only mammal to have a sense of electro reception. Electro reception is the ability to receive and make use of electrical impulses. The receptors are located in the skin of its bill.

A platypus feeds by digging in the bottom of streams with its bill. The receptors help the platypus to locate its prey. Amazingly, the receptors are sensitive enough to detect tiny electrical currents caused by the muscle contractions of its prey!

Platypus are carnivores, eating crayfish, worms, insects, snails and shrimp that they strain from the mud using their bill.

It was widely hunted for its fur until the early 20th century, but it is now a protected species.

So this unusual mammal lays eggs, has physical characteristics of a duck, an otter, and a beaver, is the size of a cat, has electro reception capabilities, and walks like a lizard. It would not be the least bit surprising if the platypus needed counseling for an identity crisis.

They are not alone . . .

Other poisonous mammals include: the solenodon, the shrew, and the loris.

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Copyright © 2011 Cindy Murdoch (homesteadbound)

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Comments: "Venomous or Poisonous Mammal? The Duck-Billed (Duckbill) Platypus"

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    • homesteadbound profile image

      Cindy Murdoch 3 years ago from Texas

      So glad you enjoyed it, jose.

    • profile image

      jose 3 years ago

      video is so cool because the platypus is an interesting animal and its one of my favorite animal

    • homesteadbound profile image

      Cindy Murdoch 6 years ago from Texas

      hello, Hillbilly Zen! How are you doing this fine evening! Have looked at my silkie chicken article(s)? You might just want to add one of those to your list also. The silkie chicken saga contains two of my conversations with my husband about me wanting a silkie chicken. Really kind of funny. I have a small ornery strike in me.

      I'm glad you enjoyed the hub about the franken-animal. Kinda of looks like it was sewn together with a lot of miscellaneous parts.

      Thanks for stopping by!

    • Hillbilly Zen profile image

      Hillbilly Zen 6 years ago from Kentucky

      What a cute little varmint. Wouldn't want to rile one, though - those spurs are serious! Ok, Ms. homesteadbound,I'm adding "platypus" to my critter wish list...right under "dino-chicken"..*nods* Great Hub, voted up and interesting!

    • homesteadbound profile image

      Cindy Murdoch 6 years ago from Texas

      PDXKaraokeGuy - You are most welcome!

    • PDXKaraokeGuy profile image

      Justin W Price 6 years ago from Juneau, Alaska

      absolutely. I love animals. Thanks for enlightening me on this strange creature!

    • homesteadbound profile image

      Cindy Murdoch 6 years ago from Texas

      PDXKaraokeGuy - I'm pleased that you enjoyed the article and now consider yourself to be enlightened. I have always found the platypus to be a very odd yet interesting animal.

      Thanks for stopping by!

    • PDXKaraokeGuy profile image

      Justin W Price 6 years ago from Juneau, Alaska

      fantastic article. strange little creature. Never knew much about them. Thanks for enlightening me!

    • homesteadbound profile image

      Cindy Murdoch 6 years ago from Texas

      jodiejay71 - it is one strange looking critter indeed! I'm glad you enjoyed it.

      Cloverleaf - I'm glad you enjoyed it. I always look forward to your responses. Thanks for stopping by.

    • Cloverleaf profile image

      Cloverleaf 6 years ago from Calgary, AB, Canada

      Homesteadbound, wow you really know your stuff don't you? Excellent use of pictures and video in this one. I am voting it up and very, very interesting!


    • jodiejay71 profile image

      jodiejay71 6 years ago

      One strange looking critter! Interesting article!