Assertion: toxin | /r/AtLocation | the skin of another frog
Facets:
Source sentences:
text: Intrigued by the properties of the toxins from the poison-dart frog, a team led by Dr. John Daly of the U.S. National Institutes of Health tried to analyze the toxins found in the skin of another frog--this one in Ecuador--that scientists call Epipedobates tricolor.