A research published in Current Biology has unveiled about two frogs discovered in the wilds of Brazil that transmit toxins into other animals through bony spines on their heads. The frogs have bony spines on their noses, jaws and backs of their heads.

Study's lead researcher Carlos Jared on the Butantan Institute in Sao Paulo has even injured his hand on bony spines on top of the frog called Corythomantis greeningi. Study's co-author Edmund Brodie from Utah State College in Logan said that the injury resulted into severe pain and radiating up the arm that continued for five hours.

Brodie said that Jared was lucky as the frog that injured hum was less poisonous in comparison to two of the discovered species. As per the assessment of the researchers, a single gram of the venom from the more poisonous frog called Aparasphenodon brunoi might be sufficient to take the lives of more than 300,000 mice, or about 80 people.

A gram of venom from Corythomantis greeningi might be sufficient to takes the lives of more than 24,000 mice, or about six people. Brodie stated, "Amphibians have a wide selection of pores and skin toxins which were well- studied, however this kind of mechanism - transmitting the toxin as a venom - has not been discovered earlier than. It strikes the research of amphibian defenses to a brand new degree".