326258 replies to this topic

[General]

No, i have memorized everything he said, he did not.

[TheDR]

Pretty cool!

Quote

The vetulicolians, the animals in this video, were once thought to be closely related to arthropods (animals like crustaceans, insects, arachnids, etc.) because of their segmented bodies before structures thought to be gill pores were found on them, making them instead be considered primitive deuterostomes (or animals that form the anus first in embryonic development rather than the mouth like most other animals; this group includes chordates, including vertebrates, as well as starfish and acorn worms—and it is thought their common ancestor had gill pores like these creatures).

When a notochord (a stiff rod of compression-resistant cells running along the bodies of all chordates at some point in their lives—including vertebrates, where in humans it becomes part of the spinal disks) was found in the tail of one vetulicolian, Nesonektris (seen at 1:01 in the video), it became clearer that they were true chordates, possibly related to tunicates or sea squirts (whose tadpole-like larvae likewise have notochords in their tails).

However, a newer study of another prehistoric chordate animal, Pikaia , instead considers them all as a sort of "missing link" between non-chordate ancestors and true chordates instead of their own distinct group—though this study interestingly does not reference the findings of the one where Nesonektris was discovered.

[Slightly Wonky Robob]

General, on 11 February 2025 - 15:35, said:

No, i have memorized everything he said, he did not.

General Grievous strikes again!

[Destiny]

wats

[Slightly Wonky Robob]

I think we all know General's alt account is General Grievous.

[General]

My alt account is Local.

[Chyros]

coin pusher roguelite?!

https://store.steamp.../Clockwork_Owl/

[General]

I will push your coins in 59 seconds

[Slightly Wonky Robob]

Chyros is going off the deepend