We are currently experiencing a disruption of our service to our World and Create Channels. We are actively working to restore functionality. Thank you for your patience!

Stream live and on-demand content now on our new app:
RMPBS+

Thank you to those who supported Rocky Mountain PBS on Colorado Gives Day!

Gross Science show's poster

White Sand Beaches Are Made of Fish Poop

Bizarre stories from the slimy, smelly, creepy world of science.

White Sand Beaches Are Made of Fish Poop

Season 1 Episode 24 | 2m 9s

Parrotfish poop out sand, and that’s just the beginning of what makes these guys weird.

Related stories

Science & Environment
Rocky Mountain Biological Laboratory trains the next generation of scientists
Young campers learn from some of the most esteemed researchers in the state surrounded by some of the most pristine learning environments.
 | Chase McCleary
Kids
The Joy of Poison
Theresa goes to the Denver Museum of Nature and Science with Helen and her mom Megan.
 | Theresa Ho
Rocky Mountain PBS
Denver Museum of Nature and Science researchers found that Castle Rock’s durability is due microscopic amounts of the colorful gemstone opal.
 | Chase McCleary

Gross Science

Watch more episodes

See more
See more