Studies demonstrate that Mexican mole lizards have very low genetic variation among the three allopatric species found in this genus.

The forelegs are short, strong and paddle-like, while the hind legs have disappeared, leaving behind only vestigial bones visible in X-rays.

Due to sacrificing the development of its ear to permit it to dig more efficiently, the Mexican mole lizard has evolved to have its skin transmit vibrations to the cochlea.

B. biporus is an opportunist carnivore and eats ants, termites, ground-dwelling insects, larvae, earthworms, and small animals including lizards.

Stomach content analyses showed that most prey items were soft-bodied and bore tooth marks, indicating that the lizard bit and chewed them rather than swallowing them whole.

Urban development and agricultural practices often result in habitat destruction, particularly concerning as these creatures typically burrow at shallow depths.