The dodo is dead. The passenger pigeon has passed on. But Lonesome George, the iconic Galápagos tortoise whose death marked the end of his species, is in post-mortem luck.

A scientific expedition has discovered some of his close blood relations alive and well. With careful breeding, biologists now hope to revive George’s species and reintroduce the tortoises to the island on which they evolved.

It would be a signal achievement in a place that gave rise to our understanding of evolution and speciation.

Originally there were at least eight species of Galápagos tortoise, scientists now believe. (One was discovered only this year.) At least three species are now extinct, including tortoises on Pinta Island. The last one, George, was discovered wandering alone in 1972 and taken into loving custody. His death, in 2012 at more than 100 years old, was a powerful reminder of the havoc visited by humans on delicate ecosystems worldwide over the last two centuries.