Woodhouse’s look like they have back to back “L”s between and behind their eyes. The American toad can live for up to 30 years with proper husbandry and nutrition. These toads are poisonous to pets and several dogs have been known to die after ingesting the toads. These toads can be found primarily in deep soils in river valleys and flood plains. All about frogs and toads. Some toads may or may not have a light stripe down the middle of the back, and typically the belly has no mark-ings, but may have a single chest spot. Hidden in daytime, hunts at night. To my dismay, I came to the conclusion that Vinny had in fact licked a poisonous toad: the Bufo genus, consisting of about 150 species of toads, can be poisonous to dogs and cause hallucinations in humans. I hope this helps you with your toads. Also, each hind foot has a single, sharp, black spade. Western Toad tadpoles lack visible white or gold flecks on the back that are present in Woodhouse… The toads prefer sandy areas. 1 thought on “ How safe is it to hold frogs and toads? Great Plains toads are the only North Dakota toads with large, dark sym-metrical blotches on their backs. Woodhouse’s toad can be found only on the western edge of Iowa. They also have a larger, longer poison gland behind the eye. However, if your dog ingests a large amount there is a high probability of death due to the toxicity. To my dismay, I came to the conclusion that Vinny had in fact licked a poisonous toad: the Bufo genus, consisting of about 150 species of toads, can be poisonous to dogs and cause hallucinations in humans.. The stored fluids are released when the toad becomes frightened, as most anyone who has picked up a toad can attest. Woodhouse's toads are active at night but can be seen in the daytime. Do you know the difference between frogs and toads? The tests using toads were faster than those employing mammals; the toads were easier to raise, and, although the initial 1948 discovery employed Bufo arenarum for the tests, it soon became clear that a variety of anuran species were suitable, including the cane toad. ... Are Woodhouse toads poisonous? If you see a toad, it's most likely an American toad, the most common toad in Minnesota. How to Attract Toads The glands and warts produce a poison -- bufotalin, bufonin or bufogin -- that makes the toad bad to eat. not all toads are safe for your dog to play with! Sonoran Desert Toads are said to kill more dogs in the Phoenix area each year than rattlesnakes do. But a few toads happen to secrete a poisonous venom that can cause serious problems for dogs.