This website aims to tell you nearly everything you need (and may ever want) to know about convergent evolution. It allows you to explore the way that similar adaptive solutions have repeatedly evolved from unrelated starting points on the tree of life, as though following a metaphorical ‘map’.
We have identified hundreds of examples of convergence, so if you want to learn about convergence in sex (e.g. love-darts), eyes (e.g. camera-eyes in jellyfish), agriculture (e.g. in ants) or gliding (e.g. in lizards and mammals) then this is your best port of call.
A note to all book-lovers out there: many of the examples of convergence mentioned in the Map of Life can be found in Simon Conway Morris’s latest book, The Runes of Evolution.
Any of the information presented in the Map of Life may be freely reproduced, as long as it is acknowledged fully. Citation details can be found at the bottom of each Topic page.
Showcase Topic: Camera eyes in cubozoan jellyfish
On each of the four club-like extensions (rhopalia) near the base of the cubozoan jellyfish bell there are two camera-eyes, one pointing upwards and the other downwards.
Spotlight on Research:
“Parallel and convergent evolution of the dim-light vision gene RH1 in bats (order: Chiroptera)”
Y-Y. Shen, J. Liu, D.M. Irwin, Y-P. Zhang 2010, Public Library of Science ONE, volume 5, e8838
At least for some bats, vision is relatively important, but all of them are active in low-light conditions. Low-light vision is mediated by the extremely sensitive visual pigment rhodopsin. The analysis of the rhodopsin gene RH1 in a number of echolocating and non-echolocating bats presented in this paper provides evidence for convergent evolution, with multiple parallel amino acid changes in the two groups.
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