Field of Science

  • in The Biology Files
  • in inkfish
  • in Life of a Lab Rat
  • in The Greenhouse
  • in PLEKTIX
  • in Chinleana
  • in RRResearch
  • in The Culture of Chemistry
  • in Disease Prone
  • in The Phytophactor
  • in The Astronomist
  • in Epiphenom
  • in Sex, Genes & Evolution
  • in Skeptic Wonder
  • in The Large Picture Blog
  • in Memoirs of a Defective Brain
  • in C6-H12-O6
  • in The View from a Microbiologist
  • in Labs
  • in Doc Madhattan
  • in The Allotrope
  • in The Curious Wavefunction
  • in A is for Aspirin
  • in Variety of Life
  • in Pleiotropy
  • in Catalogue of Organisms
  • in Rule of 6ix
  • in Genomics, Evolution, and Pseudoscience
  • in History of Geology
  • in Moss Plants and More
  • in Protein Evolution and Other Musings
  • in Games with Words
  • in Angry by Choice

Pages

12 Days of Inkfish, Day 2: Upside-Down Jelly


Cassiopea jellyfish spend much of their adult lives lying on their backs. Or maybe their heads. However you look at it, they're upside-down: they rest in warm, shallow waters, holding their branching arms up toward the sun. Inside those tentacles are single-celled algae, which photosynthesize and provide food for their jelly farmers.

Cassiopeia, the jellyfish's differently spelled namesake, was a queen in Greek mythology. After bragging that she was even more beautiful than sea nymphs called the Nereiads, the queen was punished by having her constellation placed where it sometimes appears upside-down as it rotates in the sky.

The jellyfish are passive but have a mild sting. Some crabs hoist Cassiopea jellyfish onto their backs for self-protection, carrying them around gardens and all.



Image: Cassiopea jellyfish at Shedd Aquarium, taken by me. If you like seeing bizarre animals up close (or adults with their faces pressed up to glass like kids), go see this exhibit.

No comments:

Post a Comment

Markup Key:
- <b>bold</b> = bold
- <i>italic</i> = italic
- <a href="http://www.fieldofscience.com/">FoS</a> = FoS

Note: Only a member of this blog may post a comment.