This last fact comes courtesy of a new analysis of cephalopod boom-bust cycles, published in Current Biology. Apparently cephalopods—squid, octopuses, and cuttlefish—are in a pretty strong boom cycle right now.
“The consistency was the biggest surprise,” lead study author Zoë Doubleday of the University of Adelaide told Gizmodo. “Cephalopods are notoriously variable, and population abundance can fluctuate wildly, both within and among species.”
In fact, the study was prompted by an Australian cuttlefish bust cycle a few years back. “They almost disappeared completely,” Doubleday said. The downturn gave one of her co-authors the idea of examining boom-bust cycles across other cephalopod populations to see if any patterns emerged. “We didn’t know how much data would be out there, but we managed to get quite a bit together,” Doubleday said.
The conclusion: after looking at data on 35 different species of cephalopods from between 1953 and 2013, the team discovered that, while there were substantial differences in population from year to year, and while a few of those species declined, the large majority of the cephalopods they were looking at actually increased in number.
Non-scientific lingo: the octopi are taking over the ocean, people! Flee to the skies!