Geographic variation in phenotypic traits among conspecific populations is well documented. Some studies have revealed that prey species may be induced to develop a defensive morphology when exposed to a specific predator. Interestingly, few...
Rats lacking normal hairy coats were discovered several years ago among our colony of hairy albino rats. The trait was found to be controlled by a recessive allele of a gene we designated shorn (shn), which mapped to distal end of rat chromosome 7....
Abstract Organisms employ inducible defenses to prevent predation. This occurs when the organism recognizes an environmental cue that leads to the expression of the defensive trait. In marine systems this cue is often chemical in nature. Several...