Sea snake species may be regaining color vision

For annulated sea snakes, seeing the wonderful world of color wasn’t always possible. These venomous sea snakes that roam Australia and Asia’s oceans once lost their color vision, but a new study into their genomes reveals that they have potentially regained their ability to see a wider palette of colors over the last 100 million years. The findings were published July 12 in the journal Genome Biology and Evolution, published by Oxford University Press.

[Related: A guide to all the places with no snakes.]

For animals, normal color vision is mostly determined by genes…