Answer: Scientists must do a careful mission to approach the tree kangaroo and use anesthesia on it, then carefully put on the radio collar, and wait for the results. These collars fall naturally after 5 months.
Explanation: To put on a radio collar, the scientists must approach a tree where tree kangaroos climb and start barking like a dog, so that the tree kangaroo doesn't get down before time. Then, they cut sticks and build a low fence called “im” around the tree, so If the tree kangaroo falls, it will slow him down. One of the scientists must climb a tree next to the Saurauia, the kangaroo won't like it, and it will descend on the prepared territory. They grab it and put it in a bag, to later use anesthesia. Once the kangaroo is asleep, the experts hold the collar and carefully put it on its neck, without hurting it. The radio collars fall automatically from tree kangaroos after five months but give time to scientists to get the needed data.