Skip to content

Southern Fried Science

Over 15 years of ocean science and conservation online

  • Home
  • About SFS
  • Authors
  • Support SFS

Tag: sharks with laser beams

Vegetarian sharks, non-lethal research, and friggin’ laser beams: Dear Shark Man, Volume 4

Posted on December 6, 2017December 6, 2017 By David Shiffman 1 Comment on Vegetarian sharks, non-lethal research, and friggin’ laser beams: Dear Shark Man, Volume 4
Uncategorized

Welcome to Volume #4 of Dear Shark Man, an advice column inspired by a ridiculous e-mail I received. You can send your questions to me via twitter (@WhySharksMatter) or e-mail (WhySharksMatter at gmail).


Dear Shark Man,

I feel more and more guilty about my own meat consumption. I wonder, are there any vegan sharks?

Sincerely,
Eager in England

Dear Eager,

There are more than 500 species of sharks, and they range widely in shape, size, habitat, and behavior. However, every single species eats animals. Many eat fish, some eat invertebrates, and few eat mammals and birds, but they all eat animals. Even the filter-feeders like whale sharks are eating zooplankton, which are (tiny) animals.

Bonnethead sharks have been documented with seagrass in their stomachs, which is likely the result of accidentally ingesting seagrass while eating crabs that live among the grass. (Sometimes I fail to pick all the lettuce off of my turkey sandwich and eat it accidentally, that doesn’t mean I’m seeking out lettuce or that lettuce is a major component of my diet). Recent work by Samantha Leigh has shown that bonnetheads may be able to partially digest this seagrass, which is pretty neat. However, that does not make them vegans, or even vegetarians.

Incidentally, a member of an influential marine conservation family whose name rhymes with Mousteau once claimed that there are more than 1,000 species of sharks and most of them are vegetarian, which is…extremely not correct.

Read More “Vegetarian sharks, non-lethal research, and friggin’ laser beams: Dear Shark Man, Volume 4” »

Recent Popular Posts

It's 2025. Why do so many scientific journal articles still display weird when shared on social media?It's 2025. Why do so many scientific journal articles still display weird when shared on social media?May 20, 2025David Shiffman
Shark of Darkness: Wrath of Submarine is a fake documentaryShark of Darkness: Wrath of Submarine is a fake documentaryAugust 10, 2014Michelle Jewell
Our favorite sea monsters – Ningen (#4)Our favorite sea monsters – Ningen (#4)September 7, 2010Andrew Thaler
Alberta, Canada is the proud owner of the largest man-made pyramid on the planetAlberta, Canada is the proud owner of the largest man-made pyramid on the planetOctober 16, 2012Andrew Thaler
What is a Sand Shark?What is a Sand Shark?November 12, 2017Chuck Bangley
What can the funniest shark memes on the internetz teach us about ocean science and conservation?What can the funniest shark memes on the internetz teach us about ocean science and conservation?November 8, 2013David Shiffman
I turned my woodshop into a personal solar farm.I turned my woodshop into a personal solar farm.June 21, 2021Andrew Thaler
A quick and dirty guide to making custom feeds on BlueskyA quick and dirty guide to making custom feeds on BlueskyFebruary 7, 2024Andrew Thaler
Deep-sea Mining: It’s science fiction, until it isn’t.Deep-sea Mining: It’s science fiction, until it isn’t.May 14, 2025Andrew Thaler
Here's what I teach my students about finding jobs in marine biology and conservationHere's what I teach my students about finding jobs in marine biology and conservationApril 10, 2024David Shiffman
Subscribe to our RSS Feed for updates whenever new articles are published.

We recommend Feedly for RSS management. It's like Google Reader, except it still exists.

Southern Fried Science

  • Home
  • About SFS
  • Authors
  • Support SFS


If you enjoy Southern Fried Science, consider contributing to our Patreon campaign.

Copyright © 2025 Southern Fried Science.

Theme: Oceanly Premium by ScriptsTown