A week and a half ago, Sudan, the last male Northern White Rhino, died.

The New York Times article is here. Below are a few quotes to ponder as a fellow resident of Planet Earth:

“This is a creature that didn’t fail in evolution,” said Thomas Hildebrandt, head of reproduction management at the Leibniz Institute for Zoo and Wildlife Research in Berlin and one of the project’s leaders. “It’s in this situation because of us.”

“Sudan is an extreme symbol of human disregard for nature,” said Jan Stejskal, director of international projects at the Dvur Kralove Zoo in the Czech Republic, where Sudan spent most of his life.

Every rhino species is under threat, said Cathy Dean, chief executive of Save the Rhino, an advocacy group, while the technical advances researchers are discussing may take 15 years to bear fruit.

“It may be too late for the northern white rhinos, but we still have time to save all the other species,” Ms. Dean said.

It’s on us. There’s still time, but the clock is ticking. Guitar god Adrian Belew tried to warn us way back in 1982, when he wrote this beautiful, bittersweet tune about the rhinos’ plight: