Chinese scientists aboard research vessel Kexue (Science) photographed several "seabed gardens" with colorful corals and sponges on Tuesday in a seamount of Mariana Trench, located in the western Pacific Ocean. (Photos: Xinhua)

Seabed gardens consist of corals and sponges discovered by Chinese scientists deep in Mariana Trench in western Pacific Ocean, May 28, 2019.

Seabed gardens consist of corals and sponges discovered by Chinese scientists deep in Mariana Trench in western Pacific Ocean, May 28, 2019.