Colossal squid
The largest recorded specimen was captured in 2007 by a New Zealand fishing boat off Antarctica. It was initially estimated to measure in length and weigh . The squid was taken back to New Zealand for scientific study. A study on the specimen later showed its actual weight was , but it only measured in total length as a result of the tentacles' shrinking "post mortem".
Bigfin reef squid
Bigfin reef squids have one of the fastest recorded growth rates for any large marine invertebrate. They can reach in only four months. Nonetheless, size can not often be reliably correlated with age, as variations of body size within a generation is fairly common. In captivity, bigfin reef squids have a lifespan of 161 to 315 days for both sexes.