One of the more whimsical squid news stories I've seen in a while: A squid, a dog, and a mini-mystery solved at a Minnesota lake.
"Of course, squid are not found in Minnesota lakes," reports journalist Al Edenloff. So true, and so charmingly put!
Squid are not found in any lakes. Neither are octopuses, cuttlefish, or nautilus. Class Cephalopoda is exclusively marine, with the closest approximation to a freshwater representative still only tolerating a wee bit of rain with its seawater. Other mollusc groups, like snails and mussels, have members in both salt and freshwater--but not cephalopods. What's the diff?
Cornell's Ask A Scientist addressed this question back in 2005, but I find the answer rather unsatisfying. Dr. Vawter just explains why freshwater snails are good at coping with freshwater, without explaining why cephalopods haven't evolved the same tricks. Commenters at TONMO and Why Evolution Is True have also weighed in, but to my knowledge science hasn't yet got a clear answer.
At least the Minnesota mystery has a satisfying resolution!
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- Prevent Alzheimer's Disease By Drinking Beer?
- Acceptance Of Evolution Is Far Higher Than Acceptance Of Other Biology
- Planck on BICEP2 "It turns out that the part of the dust had been significantly underestimated." UPDATED
- Hardwired For Miscommunication? Why Women Think Sex When Men Just Want To Be Friends
- The ATLAS Top Production Asymmetry And One Thing I Do Not Like Of It
- Extended Telomeres Slow Cell Aging
- "What you have here is a good example of politically driven science -- versus scientifically driven..."
- "Yes, the states that most love regulation really resented the deregulation craze - so here in California..."
- "It is my contention that the de integraion of the electric utilities in states that have done the..."
- "Those uneducated, poor, Bible-thumping, Republican fanatics that coastal California thinks makes..."
- "I'm part of the brain drain from the pharmaceutical industry. I worked in the industry for 12 years..."
- One of the world's rarest large cats, the Saharan cheetah, caught on film!
- Hot spots mapped: Arsenic taints many U.S. wells
- Copy number variations: Sequencing genetic duplications could aid clinical interpretation
- Study analyzes Internet, mobile and video game effects on young users
- The source of gypsum in the longest cave system in the world