Whale conservation organization Ocean Alliance has come up with a fascinating, noninvasive way to assess whales, and it's with a handy device they like to call the SnotBot. By attaching a Petri dish to a drone and flying it over whales, they're able to collect blow samples, aka whale "snot." With the hormones, DNA, and microbiomes found in the sample, researchers are able to evaluate the health and stress levels of each whale. They've collected 53 blue whale samples in the Sea of Cortez this year already. Who knew snot could be so cool?