Strange Animals Podcast By cover art

Strange Animals Podcast

By: Katherine Shaw
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  • Summary

  • A podcast about living, extinct, and imaginary animals!
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Episodes
  • Episode 383: The Marsupial Mole

    Episode 383: The Marsupial Mole
    Jun 3 2024
    Thanks to Catherine and arilloyd for suggesting the marsupial mole! Further reading: Northern marsupial mole: Rare blind creature photographed in Australian outback The marsupial mole, adorable little not-mole from Australia [photo from article above]: Grant's golden mole, adorable little not-mole from Africa: Show transcript: Welcome to Strange Animals Podcast. I’m your host, Kate Shaw. This week we have a little short episode about a very small Australian animal suggested by two listeners: Catherine, who has the best name ever, and someone called arilloyd who left us a nice review and suggested this animal in the review. I’m not sure I’m pronouncing their name right, so apologies if not. The animal is the unusual but very cute marsupial mole. There are two closely related species of marsupial mole, one that lives farther north than the other. They look very similar, with silky golden fur, strong, short legs with strong claws for digging, a very short tail, no external ears, and no eyes. The marsupial mole doesn’t have eyes at all. It doesn’t need eyes because it spends almost its entire life underground. All this sounds similar to other moles, but the marsupial mole isn’t related to other moles. Other moles are placental mammals while the marsupial mole is a (guess, you have to guess), right, it’s a marsupial! That means its babies are born very early and crawl into the mother’s pouch to finish developing. The marsupial mole has two teats, so it can raise two babies at a time. The marsupial mole grows around 6 inches long, or about 16 cm, and is a little chonky animal with a pouch that faces backwards so sand won’t get in it. It has a leathery nose and small teeth, and its front feet are large with two big claws. We actually don’t know very much about the marsupial mole because it’s so seldom seen. Not only does it live underground, it lives in the dry interior of Australia, the Great Sandy Desert. It probably also lives in other desert areas of Australia. Scientists think the marsupial mole originally evolved to dig not in desert sand but in the soft, wet ground in rainforests. Over millions of years Australia became more and more dry, until the rainforests eventually gave way to the current desert conditions. The marsupial mole had time to adapt as its environment changed, and now it’s extremely well adapted to living in sand. It sort of swims through the sand using its big paddle-shaped front feet, kicking the sand behind it with its back legs. Unlike other moles, the marsupial mole doesn’t dig permanent tunnels and the sand just collapses behind it. While the marsupial mole can’t see, and probably doesn’t have great hearing by our standards, it does have a good sense of smell in order to sniff out insect eggs and larvae, worms, and other small, soft food. It probably searches mainly for insect nests where it can find lots of food at one time, like ant nests. There are also reports of it eating adult insects, seeds, and even small lizards. The reason the marsupial mole looks and acts so much like placental moles is due to convergent evolution. The mole’s body shape and habits just work really well for an animal that wants to dig around and eat grubs. Like other moles, it has trouble regulating its body temperature since most of the time it doesn’t need to do so. If it gets too hot, it can dig deeper into the sand where it’s cooler. The marsupial mole is most similar to a completely unrelated placental mammal, Grant’s golden mole, which lives in a few parts of coastal South Africa and Namibia in Africa. Grant’s golden mole lives in sandy areas and swims through the sand like the marsupial mole does. It mainly eats termites and other insects, but it will also eat small reptiles. Its fur is a sandy golden color and it has no external ears, no eyes, and three big claws on its front feet. It only grows about 3 and a half inches long, or 9 cm, which makes it the smallest golden mole.
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    7 mins
  • Episode 382: Smilodon, the Sabertoothed Cat

    Episode 382: Smilodon, the Sabertoothed Cat
    May 27 2024
    Thanks to Luke for suggesting this week's topic: Smilodon, the saber-toothed cat, AKA the sabertooth tiger! Further reading: Did sabertooth tigers purr or roar? The double-fanged adolescence of saber-toothed cats We don't know for sure what Smilodon looked like, but it might have been something like this: An artist's rendition of an adolescent Smilodon with doubled fangs [picture from second link above]: Show transcript: Welcome to Strange Animals Podcast. I’m your host, Kate Shaw. This week we’re going to learn about an animal suggested by Luke, the sabertooth tiger, also called the sabertooth cat since it wasn’t actually a tiger, also called smilodon after its scientific name. We’ve talked about it before, way back in episode 34, but a lot of new studies have been published since then and we know a lot more about this terrifying-looking animal! The genus of the saber-toothed cat is Smilodon, so that’s mostly what I’m going to call it in this episode. It’s classified as a member of the family Felidae, which is the same family where you find domestic cats, wildcats, big cats, and lots of extinct animals like the cave lion, but Smilodon wasn’t closely related to what we think of as cats. There were at least three species of saber-tooth cats in the genus Smilodon that we know of, but it had many other similar-looking relatives. Smilodon is best known from the La Brea tar pits in Los Angeles, California, where the remains of hundreds of individuals have been discovered. That’s a big reason why we know so much about Smilodon, especially the species Smilodon fatalis that lived in North America and parts of South America. An even bigger species lived exclusively in South America, while both were probably descended from a smaller species that also lived in South America. S. fatalis is estimated to have grown up to 39 inches tall at the shoulder, or 99 cm, while S. populator stood at an estimated 47 inches tall, or 119 cm. That’s almost four feet tall. Some full-grown humans are that height! Smilodon was so stocky and heavily muscled that it probably looked more like a bear than a cat. Its had a broad head and jaws that could open much wider than most modern animals, which allowed it to deploy its most deadly weapon, its saber teeth, without its jaw getting in the way. Smilodon’s saber teeth were as much as 11 inches long, or 28 cm, although S. fatalis typically had teeth around 8 inches long, or 20 cm. Big as they were, the saber teeth were also relatively delicate. A young Smilodon didn’t start growing its big teeth until it was about a year old, and even then it had to learn how to use them so they wouldn’t break. Luckily for adolescent smilodons, they didn’t lose their baby fangs until they were fully grown. Most mammals only grow two sets of teeth in our lifetimes. The first set is usually called baby teeth or milk teeth. As the baby grows up, its adult teeth start growing in one at a time. The adult tooth pushes at the baby tooth until it gets loose and either comes out on its own or, in the case of me in second grade, I asked to go to the bathroom and then spent half an hour twisting at a loose baby tooth until it finally came out, along with some blood. But I got a quarter that night from the tooth fairy. (Kids, maybe don’t do that.) In the case of a young smilodon’s saber teeth, they grew in just next to the baby fangs. Instead of pushing the baby fangs out, the new teeth grew alongside them and even had a groove for the baby teeth to fit into. When scientists first discovered preserved jaws with these double fangs, they thought it was a fluke, that sometimes the new teeth came in wrong and didn’t push the old teeth out. That happens in humans sometimes too and then you have to go to the dentist to get the old baby teeth taken out. But paleontologists kept finding these double toothed jaws, and only in adolescent smilodons. Finally a team of scientists studied the teeth carefully and made...
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    9 mins
  • Episode 381: Out of Place Birds

    Episode 381: Out of Place Birds
    May 20 2024
    Thanks to Richard from NC, Pranav, and Alexandra for their suggestions this week! Further reading: ABA Rare Bird Alert One Reason Migrating Birds Get Lost Is Out of This World Inside the Amazing Cross-Continent Saga of the Steller's Sea-Eagle A Vagrant European Robin Is Drawing Huge Crowds in China Bird migration: When vagrants become pioneers A red-cockaded woodpecker: Steller's Sea Eagle making a couple of bald eagles look small: Steller's sea eagle: A whole lot of birders showed up to see a European robin that showed up in the Beijing Zoo [photo from the fourth article linked above]: A robin: Mandarin ducks: Richard's pipit [photo by JJ Harrison (https://www.jjharrison.com.au/) - Own work, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=23214345]: Show transcript: Welcome to Strange Animals Podcast. I’m your host, Kate Shaw. We’re talking about some birds again this week, with a slightly mysterious twist. These are birds that have shown up in places where they shouldn’t be, sometimes way way far from home! Thanks to Richard from NC for inspiring this episode and suggesting one of the birds we’re going to talk about, and thanks to Pranav for suggesting we cover more out of place animals. Last week we talked about some woodpeckers, and I said I thought there was another listener who had suggested the topic. Well, that was Alexandra! Let’s start today’s episode talking about the red-cockaded woodpecker, another bird Alexandra suggested. The red-cockaded woodpecker is native to the coastal southeastern United States, where it lives in pine forests. It’s increasingly threatened by habitat loss since the pine forests get smaller every year, and not only does it need old-growth pine forests to survive, it also needs some of the trees to be affected by red heart fungus. The fungus softens the interior wood, which is otherwise very hard, and allows a woodpecker to excavate nesting holes in various trees that can be quite large. The female lays her eggs in the best nesting hole and she and her mate raise the babies together, helped by any of their children from previous nests who don’t have a mate of their own yet. When they don’t have babies, during the day the birds forage together, but at night they each hide in their own little nesting hole to sleep. It’s a small bird that doesn’t migrate, which is why Beth Miller, a birder in Muskegon, Michigan, couldn’t identify it when she spotted it on July 1, 2022 in some pine trees near a golf course. She took lots of photos and a recording of its calls, which she posted in a birding group to ask for help. She knew the bird had to be a rare visitor of some kind, but when it was identified as a red-cockaded woodpecker, she and nine birder friends went back to the golf course to look for it. Unfortunately, they couldn’t find the bird again. It was the first time a red-cockaded woodpecker had ever been identified in Michigan, although individual birds do sometimes wander widely. While bird migration isn’t fully understood, many birds use the earth’s magnetic field to find their way to new territories and back again later in the year. Humans can’t sense magnetic fields but birds can, and being able to sense Earth’s magnetic field helps birds navigate even at night or during weather that keeps them from being able to see landmarks. But sometimes birds get lost, especially young birds who have never migrated before or a bird that gets caught in storm winds that blow it far off course. If a bird shows up somewhere far outside of its normal range, birdwatchers refer to it as a vagrant, and some birders will travel great distances to see vagrant birds. One interesting note is that birds navigating by the earth’s magnetic field can get confused if the magnetic field is disrupted by geomagnetic storms, including solar flares, sunspots, and coronal mass ejections.
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    13 mins
Biological Sciences Natural History
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Always lovely

Strange Animals Podcast is always entertaining and informative, fantastic for families. Highly recommended for homeschooling, too.

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Interesting

I loved it very entertaining would recommend if you love animal and want to learn more.

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