YouTube

Balls.
(credits and links below)

Huge thanks to:
Fabiane Gallucci, Gustavo Fonseca , Alvaro Migotto
and Maikon Di Domenico, NP Bio Mar, CEBI Mar USP:
for access to the amazing online database
at cifonauta.cebimar.usp.br and footage from Life Between the Grains
YouTube

Sri Harsha - wildgundmi.com for inspiring me with a clip!
YouTube

Matthew Davidson - stretta.com for the amazing fight scene
YouTube

Kita M Williams - for filming sand and polychaetes

Natural History Museum And Institute, Chiba, Japan

Jackson Hart Grady
for helping me with the research!
Shutterstock

to submit footage: zefrank@gmail.com