This week we show remarkable footage of hagfish using slime as a defence mechanism. These fishes are also active hunters. There are some great new images, plus the first sighting of 'the' undescribed anglerfish guarding its eggs.
Hagfishes are incredible! They can stop a would-be predator within seconds with a mouthful of slime. Ichthyologists at the National Museum of New Zealand (Te Papa Tongarewa) have just published a fascinating paper on hagfish behaviour in the journal Nature.