Zoo staff in Brownsville are on high alert. They check the animals every day to make sure they are healthy. This is part of an effort to prevent a certain pest from causing problems.

The pest in question is a type of worm that can harm animals. State officials are working with the zoo to keep an eye out for it. So far, the zoo has not found any signs of the worm.

For more information about the zoo's efforts, readers can visit ValleyCentral. The zoo is taking steps to protect its animals and assist in monitoring the situation.