Latest Three-spined stickleback Stories
Sticklebacks, the roaches of the fish world, are the ideal animal in which to study the genes that control body shape. They’ve moved from the ocean into tens of thousands of freshwater streams and lakes around the world, each time changing their skeleton to adapt to the new environment.
A new study on the schooling habits of fish could provide new insights into the social behaviors and natural variations of humans.
New work from the HudsonAlpha Institute for Biotechnology, with collaborators at Stanford University and five other groups, has pinpointed evolution in action.
University of British Columbia researchers have observed one of the fastest evolutionary responses ever recorded in wild populations.
University of Oregon labs combine emerging technologies to identify gene regions underlying adaptation.
New research shows that when two species of stickleback fish evolved and lost their pelvises and body armor, the changes were caused by different genes in each species.
Canadian scientists say they have conducted the first experiment that shows the evolution of new species impacts the environment. Scientists at the University of British Columbia created mini-ecosystems in large aquatic tanks using different species of three-spine stickleback fish and saw substantial differences in the ecosystems within 11 weeks. Stickleback fish originated in the ocean, but began populating freshwater lakes and streams following the last ice age.
The stickleback fish, Gasterosteus aculeatus, is one of the most thoroughly studied organisms in the wild, and has been a particularly useful model for understanding variation in physiology, behavior, life history and morphology caused by different ecological situations in the wild.
By ELIE DOLGIN In a dark, damp corner of a University of Wisconsin-Madison laboratory, Jenny Boughman dropped a 3-inch, three-spined female fish into a fish tank, and waited. She sat perfectly still as she watched a male fish swim out slowly from its nest, beneath a cracked flower pot.
The Three-Spined Stickleback, Gasterosteus aculeatus, is a fish native to much of northern Europe, northern Asia and North America. It has been introduced into parts of southern and central Europe. Three subspecies that are currently recognized by the IUCN are Gasterosteus aculeatus aculeatus, which is found in most of the species range, and is the subspecies most strictly termed the Three-Spined Stickleback; its common name in England is the Tiddler, although "tittlebat" is also sometimes...