The Colorado River Toad (Bufo Alvarius) is a large
toad (the largest one in the
USA actually),
found in
arid areas in
North America.
It habitates wet areas near permanent
springs.
It can grow up to 17,5 cm (approx. 7 inches)
long, and feeds on
spiders,
insects and
small
lizards. It usually reached a
reproductive age within a month.
This toad is probably best known for
venomous glands on its forearms,
hind legs and neck. The venom contains
Bufotenine, a powerful hallucinogen.
Furthermore, it is the only toad in the world whose skin
contains a hallucinogenic substance.
With the right procedure, 50 - 160 milligrams of 5-MeO-DMT
can be extracted per gram of skin.
This is the origin of the expression "toad licking".
However, the venom is NOT very healthy to
ingest in this manner, because consuming
a sufficient dose of it can cause dangerous
physiological effects from other
non-psychoactive toxins.
If one is really inclined to try this, drying and
smoking the venom and/or skin is much safer, at least
physiologically speaking.