It's interesting though, from what I've been told C. elegans are one of those species where maturation in males is really variable. I've heard people say they've had males mature at 1/2" and some nearly 2". Of course, maybe the variation is due more to the fact that we are getting old and can't see that well when things are so small, but could be just one of those things. Also my male grew A LOT faster than what I am assuming is a female from the same sac. He matured in maybe January at almost an inch and today what I am assuming is a female is barely 1/4". Interesting.Ahhh, as usual i am off by 1/2". With my eye sight I would have difficulty seeing the hooks.