I’m looking at the fish in the mirror: a tail of social signaling

https://commons.wikimedia.org/w/index.php?search=Neolamprologus+brichardi&title=Special:Search&profile=default&fulltext=1&searchToken=b3xy9zpfel96b3jm84ukif0nd#/media/File:Neolamprologus_brichardi_young.jpg

Just as we exploit social media to self-promote, find mates, and flaunt social status, animals use visual, olfactory, auditory, or mechanical displays to communicate with one another. Like a Facebook status, these displays often communicate some internal attribute about the organism. A well-known example of this type of signaling is the vibrant tail-feathers of the … Continue reading I’m looking at the fish in the mirror: a tail of social signaling

Advertisements

Tiny chompers: How a baby Cichlid behavior influences an adaptive trait

Think of a trait, any trait. A bird beak, a butterfly wing, a fish fin. Highly coordinated gene expression networks ultimately produce all traits. Hence, any variation you see in these traits must be due to shifts in gene expression, whether that shift is determined genetically or by some external cue. Evolutionary developmental biologists want … Continue reading Tiny chompers: How a baby Cichlid behavior influences an adaptive trait