DNA reveals a Komodo Dragon's toughest opponent may be a Komodo Dragon

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Komodo Dragons are fierce hunters, complete with venomous saliva, but the DNA of the dragon has now revealed they have evolved some cunning tricks to avoid the harmful effects of this saliva when battling it out against their own species. Scientists from the US and Australia have sequenced the entire genome of Komodo Dragon to gain clues about the DNA of the monster monitor. During their hunting, the monitors often go toe to toe with their own species, using their serrated teeth to bite into their opponents. But according to their DNA, the Komodo Dragons have strong selection for genes that prevent blood clotting, which helps avoid the harmful effects of their venomous saliva. Their analysis also showed selection for genes related to cardiovascular output, respiration, and blood pressure regulation, making these lizards well equipped for hunting, running, and swimming. This study can provide insights into the evolution of monitors and reptiles across the world.

Journal/conference: Nature Ecology & Evolution

Link to research (DOI): 10.1038/s41559-019-0945-8

Organisation/s: Deakin University, Gladstone Institutes, San Francisco

Funder: Gladstone Institutes

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