Bonaire – I needed video of schools of fish to illustrate a teaching point for a REEF fish identification class so we headed to a site with known schools of Smallmouth Grunts, Haemulon chrysargyreum. The grunts normally drift sedately in small schools but today there seemed to be a troublemaker in the group. Every time I approached, one fish would panic and send the whole school fleeing. When I looked up from my viewfinder, I realized the culprit was a poor fish with an injured tail. It appeared to be growing a new one – something I have seen in small aquarium fish, but never in the wild! It finally decided I was no threat and settled down enough for me to get a little video that you can watch by clicking here: Grunt regenerating tail. 