Tiny juvenile Humboldt squids.

Tiny juvenile Humboldt squids.

Stanford University graduate student Danna Shulman is studying the early stages of squid development. Because she and other researchers don't know what squid larvae eat, they haven't been able to raise them in the lab yet.

But when she was out on a squid tagging expedition with researcher Bill Gilly, one of the team, Unai Markaida, scooped about 100 tiny squid from the sea. Some of these squid were of a size that marks the transition from paralarva to juvenile (1 cm), so we guess that we were witnessing the outcome of a mass spawning event that occurred up to one month ago. 

You can read more about the development stages of the Humboldt squid and see more photos on this blog post.