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Hey kiddo! Imagine a creature that wades in the water like a duck, lays eggs like a bird, and has fur like a teddy bear. That’s right! I’m talking about the platypus. You might wonder, what makes this funny-looking critter a mammal? Well, let me take you on a fun, little adventure through the world of animals!

First things first, all mammals share some special traits. One of these traits is that they have hair or fur on their bodies. Just like you have hair on your head (and maybe even on your arms or legs), the platypus has a fuzzy coat that keeps it warm in the chilly waters where it lives. Even though the platypus looks super weird, that furry body is a big clue that it belongs to the mammal family.

Another amazing trait of mammals is that they drink mom’s milk when they are babies. That’s right! When a baby platypus is born, it is super tiny and relies on its mom for food. Platypus moms produce special milk for their little ones. While other animals might have nipples, the platypus doesn’t. Instead, they just secrete milk through their skin, and the babies lap it up like little puppies! Isn’t that cool?

Now, let’s talk about how the platypus has fun. Did you know it can swim really well? They use their flat webbed feet to paddle around in rivers and lakes, kind of like wearing flippers! They even close their eyes and ears when they dive underwater, just to look for yummy snacks like insects and small fish. This wild swimming behavior is typical of many mammals, making our friend the platypus a sporty member of the club.

Finally, here’s the kicker: the platypus is one of only a few mammals that lay eggs! While most mammals give birth to live babies, the platypus says, 'Why not be different?' After laying her eggs, the mom incubates them until they hatch. So, not only does the platypus have all the cool features we talked about, but it also has an unusual twist that makes it extra special among mammals!

So, there you have it! The platypus is a mammal because it has fur, drinks mother’s milk, swims like a champ, and surprises us all by laying eggs. Now when you think about this incredible creature, you'll know exactly why it's a true member of the mammal family!


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Previously Asked Questions 1

#1
what are the other mammal laying eggs
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Only the monotremes lay eggs among living mammals. That group includes:

  • Platypus (Ornithorhynchus anatinus): the one platypus species lives in eastern Australia. It lays eggs, has fur, a duck-like bill (with electroreceptors to find prey) and webbed feet.

  • Echidnas (four living species): one short‑beaked echidna (Tachyglossus aculeatus) found across Australia and New Guinea, and three long‑beaked echidnas (genus Zaglossus — Z. bartoni, Z. bruijni, Z. attenboroughi) mostly in New Guinea. Echidnas have spines, long snouts for digging up insects, and they also lay eggs.

All of these animals still have mammal features (fur and milk for their young), but they’re unusual because the mothers lay eggs instead of giving birth to live young.

Asked 10/19/2025