Épisodes

  • They Ruled Earth 400M Years. Then Vanished. Then Came Back.

    They Ruled Earth 400M Years. Then Vanished. Then Came Back.
    Nov 4 2026
    Coelacanths ( SEE-lə-kanth) are an ancient group of lobe-finned fish (Sarcopterygii) in the class Actinistia. As sarcopterygians, they are more closely related to lungfish and tetrapods (the terrestrial vertebrates including living amphibians, reptiles, birds and mammals) than to ray-finned fish. There is only a single living genus, Latimeria, with two described species. The name coelacanth origi
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    1 min
  • Quetzalcoatlus: 33ft Wing. We Almost Missed It.

    Quetzalcoatlus: 33ft Wing. We Almost Missed It.
    Nov 4 2026
    Quetzalcoatlus ( ) is a genus of azhdarchid pterosaur that lived during the Maastrichtian age of the Late Cretaceous in North America. The type specimen, recovered in 1971 from the Javelina Formation of Texas, United States, consists of several wing fragments and was described as Quetzalcoatlus northropi in 1975 by Douglas Lawson. The generic name refers to the Aztec serpent god of the sky, Quetza
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    2 min
  • Denisovans: Ancient Humans We Only Know From DNA

    Denisovans: Ancient Humans We Only Know From DNA
    Nov 4 2026
    The Denisovans or Denisova hominins ( də-NIS-ə-və(nz)) are an extinct species or subspecies of archaic human that ranged across Asia during the Middle to Late Pleistocene, approximately 200,000–32,000 years ago. Most of what is known about Denisovans comes from DNA evidence. While many recent fossils have been found and tentatively identified as Denisovan, the first Denisovans discovered were know
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    1 min
  • Dodo: 3ft Tall. Gone in 64 Years. We Ignored It.

    Dodo: 3ft Tall. Gone in 64 Years. We Ignored It.
    Nov 3 2026
    The dodo (Raphus cucullatus) is an extinct flightless bird that was endemic to Mauritius, an island east of Madagascar in the Indian Ocean. The dodo's closest relative was the also-extinct and flightless Rodrigues solitaire. The two formed the subtribe Raphina, a clade of extinct flightless birds that are a part of the group that includes pigeons and doves (the family Columbidae). The closest liv
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    1 min
  • They Ruled Earth for Millions. Then 80% Vanished.

    They Ruled Earth for Millions. Then 80% Vanished.
    Nov 3 2026
    In zoology, megafauna (from Greek μέγας megas 'large' and Neo-Latin fauna 'animal life') are large animals. The precise definition of the term varies widely, though a common threshold is approximately 45 kilograms (99 lb), this lower end being centered on humans, with other thresholds being more relative to the sizes of animals in an ecosystem. The spectrum of lower-end thresholds ranges from 10 k
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    1 min
  • They Still Rule Earth. We Just Don't See Them.

    They Still Rule Earth. We Just Don't See Them.
    Nov 3 2026
    Birds are vertebrate animals constituting the class Aves, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. They are warm-blooded, live worldwide, and range in size from the 5.5 cm (2.2 in) bee hummingbird to the 2.8 m (9 ft 2 in) common ostrich. There are over 11,000 living speci
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    1 min
  • Kotasaurus: 9 Meters Long. Had a Weapon.

    Kotasaurus: 9 Meters Long. Had a Weapon.
    Nov 2 2026
    Kotasaurus ( KOH-tə-SOR-əs; meaning "Kota Formation lizard") is a genus of sauropod dinosaur from the Early Jurassic period (Sinemurian–Pliensbachian). The only known species is Kotasaurus yamanpalliensis. It was discovered in the Kota Formation of Telangana, India and shared its habitat with the related Barapasaurus. So far the remains of at least 12 individuals are known. The greater part of the
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    1 min
  • Harpymimus: The Dinosaur That Broke All Rules

    Harpymimus: The Dinosaur That Broke All Rules
    Nov 2 2026
    Harpymimus is a genus of basal ornithomimosaurian theropod dinosaur from the Early Cretaceous Period of what is now Mongolia. Unlike later, more derived ornithomimosaurs, Harpymimus still possessed teeth, although they appear to have been restricted to the dentary of the lower jaw. == Discovery and naming == In 1981, a Soviet-Mongolian expedition uncovered a theropod skeleton in the Gobi Deser
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    1 min