convergence

Stick Spiders from Different Hawaiian Islands Evolve in Parallel

Esther Pilla reports on a discovery in evolution It is very rare for scientists to catch examples of parallel, convergent evolution, but earlier in March Professor Rosemary G. Gillespie and her colleagues from the University of California, Berkeley, published
a study that highlighted parallel evolution in Hawaiian stick spiders. The group analysed a genus of spider, Ariamnes, whose ancestor probably first arrived on the oldest Hawaiian islands and later spread to