Posted by Carrok 1 day ago
As explained in the article, this is actually old news.
There has been more than a decade since it is well known that the hexapods a.k.a. insects have evolved from within a certain group of crustaceans, which includes the water fleas.
The 2023 research paper linked in the article has only provided stronger evidence for this.
The main implication of this discovery is that the myriapods (e.g. millipedes and centipedes) are much more remotely related to insects than it has been believed in the past and they have adapted to a terrestrial life completely independently and much earlier than the insects (the invasion of the land by major animal groups has happened in the order myriapods, then arachnids, then hexapods a.k.a. insects, then tetrapod vertebrates, by a coincidence in decreasing order of the number of legs).
Only the marine iguanas, but yes.
Also salt-water crocodiles (the largest living reptile).
https://www.youtube.com/watch?v=D0R3FVTLvT0
(People who know their taxonomy will notice that I'm conflating algae and cyanobacteria, mea culpa.)
Modern examples are saltwater crocodiles, sea turtles or sea snakes
> It is unknown whether the last common ancestor of whales and hippos led an aquatic, semiaquatic/amphibious, or terrestrial lifestyle
However, whales are a great example of a clade that went land -> water in their evolutionary history.
https://en.m.wikipedia.org/wiki/Insect#Distinguishing_featur...
Re lifecycle:
> The coastal species lay their eggs close to the water surface on rocks, plants, and other structures near the shore, while the oceanic species attach their egg masses on floating objects such as cuttlebone and feathers.
I recall an anecdote of an entomologist who studied cockroaches in particular claiming to have developed a shellfish allergy from her work.
https://www.metafilter.com/201489/A-shrimp-that-dwells-in-tr...
This article also nicely highlights how some scientists can just make stuff up, subsequently overturned when someone finds a fact-based way to evaluate their erroneous conclusions. See also archeology.