Sponges collect penguin, seal, and fish DNA from the water they filter

Source: ScienceDaily

Scientists report that sponges, which can filter 10,000 liters of water daily, catch DNA in their tissues as they filter-feed. This proof-of-concept study identified fish, seal, and penguin DNA in sponges from the Antarctic and Mediterranean, demonstrating that sponges can be used to monitor biodiversity.

https://www.sciencedaily.com/releases/2019/06/190603124707.htm