“(It is) an image of Spring Lake in San Marcos, Texas with a glass bottom boat on it. In the mid-ground in the background, you kind of see the trees on the edge of the Texas Hill Country.

Endemic to Central Texas and listed as federally endangered ... glass-bottom-boat tours of Spring Lake, the source of the San Marcos River, did not know about the species. But, encouragingly ...

“The Endangered Species Act has prevented the extinction ... of laying eggs like many species of fish. It lived in clear spring water from the headwaters of the San Marcos River in Texas. Last seen in ...

“My heart breaks over the loss of these 21 species,” said Noah Greenwald, endangered species director ... It lived in clear spring water from the headwaters of the San Marcos River in Texas. Last seen ...