From: owner-ammf-digest@smoe.org (alt.music.moxy-fruvous digest) To: ammf-digest@smoe.org Subject: alt.music.moxy-fruvous digest V14 #5431 Reply-To: ammf@fruvous.com Sender: owner-ammf-digest@smoe.org Errors-To: owner-ammf-digest@smoe.org Precedence: bulk alt.music.moxy-fruvous digest Saturday, December 5 2020 Volume 14 : Number 5431 Today's Subjects: ----------------- You can finally understand your cat! ["Cat signs" Subject: You can finally understand your cat! You can finally understand your cat! http://drainwood.bid/6j1NsIcD-e_vF4jyYK_xviE8GAwd3zNyiZghIN4N8Z674JkO http://drainwood.bid/brmUvoeDBV1OlAB3_ak-_ahalMQZDEoERIk-oNf1w9wUPgdq pite being the oldest method of communication, chemical communication is one of the least understood forms due in part to the sheer abundance of chemicals in our environment and the difficulty of detecting and measuring all the chemicals in a sample. The ability to detect chemicals in the environment serves many functions, a crucial one being the detection of food, a function that first arose in single-celled organisms (bacteria) living in the oceans during the early days of life on Earth. As this function evolved, organisms began to differentiate between chemicals compounds emanating from resources, conspecifics (same species; i.e., mates and kin), and heterospecifics (different species; i.e., competitors and predators). For instance, a small minnow species may do well to avoid habitat with a detectable concentration of chemical cue associated with a predator species such as northern pike. Minnows with the ability to perceive the presence of predators before they are close enough to be seen and then respond with adaptive behaviour (such as hiding) are more likely to survive and reproduce. Atlantic salmon go a step further than detecting a predator's cue: when an individual is damaged by a predator, it releases a chemical cue to its conspecifics. As has also been observed in other species, acidification and changes in pH physically disrupt these chemical cues, which has various implications for animal behaviour. Scent marking and scent rubbing are common forms of olfactory communication in mamm ------------------------------ End of alt.music.moxy-fruvous digest V14 #5431 **********************************************