100lb of Magnetic Putty
science side of tumblr, please explain
thank u science side
Halloween Crabs (Gecarcinus quadratus): Ecosystem Engineers
The so called Halloween Crab, Gecarcinus quadratus (Decapoda - Gecarcinidae) is a neotropical land crab with a distinctive patterning; the upper carapace seems completely black (actually dark brown when examined closely), the body and limbs are a bright orange-red, two bright yellow to white triangular spots decorate the front of the upper carapace, and the claws are purple.
The species is distributed along Pacific shorelines from Mexico to Peru. Some authors have treated Gecarcinus quadratus as a subspecies of Gecarcinus lateralis (the Atlantic species), or as synonym with Gecarcinus lateralis, while others have maintained Gecarcinus quadratus as a valid species.
Whatever, these crabs play an important ecological role on its tropical environment and is regarded as an engineering species that controls nutrient cycling in tropical forests. Gecarcinus quadratus and other similar species of land crabs process large quantities of leaf litter, thereby influencing nutrient cycling. They alter the structure of plant communities through selective consumption of seeds and seedlings, and their burrows provide habitat for obligatory and facultative arthropod symbionts. Based on the direct and indirect influences of the land crabs on resource availability, as well as their modification of habitat, they can be considered allogenic ecosystem engineers.
Photo credit: ©Eduardo Mena | Locality: Bejuco, Guanacaste, Costa Rica (2010)
“Race is there; it exists. You’re tired of hearing about it? Imagine how fucking exhausting it is living it.” -Jon Stewart
Everything you need for back to school, plus a bonus Dead Poets Society quote.
Violinist plays during brain surgery
Musician Roger Frisch underwent deep brain stimulation to fix tremors in his hands and played the violin throughout the process.
Source ScienceAlert through Daily Anatomy
Why is this not taught universally.