Researchers created a sticky drone to collect environmental DNA from forest canopies

Swiss scientists have developed a proof-of-concept method to collect environmental DNA (eDNA) from high-arching forest canopies, an under-observed habitat. Rather than hiring skilled climbers to risk their lives to grab a little bug and bird DNA, the team flew a collection drone into the trees to capture genetic material -- giving them a clearer picture of the area's organic breakdown. The researchers used a quadcopter equipped with a sticky collection cage. But since tree branches can bend at t...