Recognized as the official state shell of Texas, the lightning whelk is a fascinating marine predator, Jace Tunnell writes.

(AP Photo/Annie Rice)(Annie Rice / AP) Local health officials have reported a measles case in Rockwall County, possibly connected to the West Texas outbreak. The county’s health authority on ...

On April 11, the three states involved in the West Texas outbreak reported a total of 611 cases. It’s not clear if all of those had been reported to the CDC as of its April 10 update.