A terrifying T. rex of the sea, and more…
Quirks and Quarks

A terrifying T. rex of the sea, and more…

B2Upper-intermediateMay 29, 202654 min
  • Interview
  • Science

The newly described Tylosaurus rex was a violent bus-sized Komodo dragon-like creature with serrated teeth. Dubbed the ‘T. rex of the sea,’ it would have occupied the top of the food chain in the marine ecosystem over 80 million years ago. PLUS: Pigeons use their livers to find their way homeFrom the archives: How Jocelyn Bell Burnell discovered pulsars Scientists discover an underground network of lakes hidden under Arctic ice New book explores the million year history of how we sleep — and why we’re doing it wrong today

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0:35

Hi, I'm Bob McDonald. Welcome to Quarks and Quarks. On this week's show, the unexpected way pigeons find their way home. This is completely new and fundamentally changes our understanding of both the immune system

0:52

and animal navigation. A bus-sized Komodo dragon-like lizard that once ruled a sea of monsters. Even as fossils, they're kind of intimidating to be around because they're so big and so heavy. And the teeth are still pretty sharp even after 80-ish million years.

1:08

Plus, a look back at the discovery of pulsars, big changes with Arctic glaciers in a warming climate, and how the way we sleep has changed over time. All this today on Quarks & Quarks. Pigeons these days are considered an urban menace, pooping all over statues and nesting

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