© 2026 Connecticut Public

FCC Public Inspection Files:
WEDH · WEDN · WEDW · WEDY
WEDW-FM · WNPR · WPKT · WRLI-FM
Public Files Contact · ATSC 3.0 FAQ
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

How the Walrus Got Its Tusks

Season 3 Episode 12 | 7m 42s

The rise and fall of ancient walruses, and how modern ones got their tusks, is a story that spans almost 20 million years. And while there are parts of the story that we’re still trying to figure out, it looks like tusks didn’t have anything to do with how or what these animals ate.

Aired: 07/28/20
Extras
Get ready for the all-new season, coming January 17, 2027 at 9/8c.
The cast play a game of "What's in the vet bag?" with sentimental props from the series.
Celebrate the legacy of Gene Wilder, the actor behind Willy Wonka and Young Frankenstein.
Scientists race to save the historic island on the Chesapeake Bay from rising sea levels.
Sheléa performs "MacArthur Park" in this retrospective concert for Jimmy Webb.
Jimmy Webb, Vince Gill, Lyle Lovett and Ashley Campbell perform "Highwayman."
Following tigers after dark reveals surprise encounters and a hidden world of family life.
Seeds is a visual exploration of Black farmers and the power of owning land across generations.
Pati Jinich continues her journey inspired by the Pan-American Highway.
The War & Treaty perform "Golden Ring" by Tammy Wynette and George Jones.
Latest Episodes
All
  • All
  • Eons Season 9
  • Eons Season 8
  • Eons Season 7
  • Eons Season 6
  • Eons Season 5
  • Eons Season 4
  • Eons Season 3
  • Eons Season 2
  • Eons Season 1
What about the Great Dying caused a global age of mutant plants?
During the Permian Period many tetrapods, or four-limbed vertebrates, took to life in the trees.
Around 300 million years ago sails were all the rage, but we're still not sure what they were for.
Life begins to rebound after the destruction of the mass extinction ending the Permian Period.
An apocalypse ended the Permian Period 252 million years ago, wiping out more than 80% of species.
The first saber-teeth and tusks evolve in the Late Permian and our ancestors, the cynodonts, appear.
For millions of years after the Great Dying microbes ruled the Earth.
An extinction in the Middle Permian decimates life, from a fossil reef to our ancient relatives.
The first herbivorous vertebrates evolve on the side of the amniote family tree leading to mammals.
Seed plants and amniotes adapt to dry climates, helping them thrive on Pangea in the Permian Period.