Hi, whilst filming a headshield slug the other day I noticed it's tongue popping in and out but it was only when I got the camera back and watched the footage again that I saw it was eating something. I am wondering if anyone out there can tell me what...
Hi Richard -- Looking closely I can see many tiny acoel flatworms crawling on the coral. Chelidonura are specialized flatworm predators so that's probably what it's eating.
Thank you Leslie, it's great to know a little bit more about what I'm seeing. The scale of things is really mind blowing!