As biological researcher Kelly Estrada Piedrahita and her assistant, Shirley Fench, made their way through a slime-green-covered lake in a small boat, fellow researcher and photographer Haolun “Allen” Tian stood at the shore monitoring the pair with his drone.
Allen, currently defending his biological sciences PhD at Canada's Queen’s University, Kingston, captured this camera drone image back in 2021 during a project to collect water samples from the lake.