Deep in the Heart (2022) on Netflix

Plot summary

The landscapes of Texas and the animals that live in them are the subject, species that exist nowhere else on earth. It follows wildlife, among them the mysterious blind catfish and the elusive mountain lion, and considers the changing relationship between people and the natural world. Its route runs from the high ground of West Texas through aquifers, rivers and bays and out into the Gulf of Mexico. Running through the account is what people can destroy, what they can conserve and what they can help recover, in wildlife and in the habitat that both sides depend on. The aim is to protect the wild places that remain and to place Texas conservation in a continental context.