Uploaded February 2026 | Updated September 2026, 2 weeks ago
Spinosaurus just unlocked a new form, and it changes our understanding of the animal’s ecology, habitat, behavior, and body size. What was Spinosaurus, really? A gigantic megatheropod killer armed with adamantium claws? A squat, knuckle-walking crocodile duck? A gigantic heron-like predator stalking the shallows? Perhaps it was a mixture of all of these. At any rate, a brand new discovery by paleontologist Paul Sereno and his team shakes up the constantly-changing megatheropod all over again--by this time, introducing an entirely separate species that dramatically expands the variation within the genus. World, meet Spinosaurus mirabilis, the “astonishing spine lizard”.
00:00: Spinosaurus mirabilis
00:49: Background information on Spinosaurus aegyptiacus
05:44: Explaining the new Spinosaurus species
Spinosaurus just unlocked a new form, and it changes our understanding of the animal’s ecology, habitat, behavior, and body size. What was Spinosaurus, really? A gigantic megatheropod killer armed with adamantium claws? A squat, knuckle-walking crocodile duck? A gigantic heron-like predator stalking the shallows? Perhaps it was a mixture of all of these. At any rate, a brand new discovery by paleontologist Paul Sereno and his team shakes up the constantly-changing megatheropod all over again--by this time, introducing an entirely separate species that dramatically expands the variation within the genus. World, meet Spinosaurus mirabilis, the “astonishing spine lizard”.
00:00: Spinosaurus mirabilis
00:49: Background information on Spinosaurus aegyptiacus
05:44: Explaining the new Spinosaurus species
