There are many barriers for reproduction between different species. So many, in fact, that hybridization — breeding between species — is rare and considered "an accident" . Many hybrids are sterile and cannot pass on their genes; the themselves.Why, then, would the Mexican spadefoot toad and the plains spadefoot toad be seen so often? Is it possible that these toads actively hybridize based on the current environment?Although , hybridizing can be adaptive for the plains spadefoot. Spadefoot tadpoles develop in desert ponds that often dry up before the tadpoles are adults, resulting in their...…There are many barriers for reproduction between different species. So many, in fact, that hybridization — breeding between species — is rare and considered "an accident" . Many hybrids are sterile and cannot pass on their genes; the themselves.Why, then, would the Mexican spadefoot toad and the plains spadefoot toad be seen so often? Is it possible that these toads actively hybridize based on the current environment?Although , hybridizing can be adaptive for the plains spadefoot. Spadefoot tadpoles develop in desert ponds that often dry up before the tadpoles are adults, resulting in their...WW…