Project Obscurus is a joint effort by zoos to successfully breed a threatened species of rattlesnake. Mariana Dale hatched this story.

<p>Project Obscurus is a joint effort by zoos to successfully breed a threatened species of rattlesnake. Mariana Dale hatched this story.<a href="https://laist.com/news/climate-environment/los-angeles-zoo-ridge-nosed-rattlesnake-recovery-litter-2026" aria-label="Get rattled! LA Zoo has new baby snakes as part of endangered species program" data-cms-ai="0"></a></p>