7
326292 replies to this topic
#326251
Posted Yesterday, 15:35
No, i have memorized everything he said, he did not.
#326252
Posted Yesterday, 16:09
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.
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.
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#326254
Posted Yesterday, 17:12
wats
#326256
Posted Yesterday, 17:27
My alt account is Local.
#326257
Posted Yesterday, 17:43
TN
The brave hide behind technology. The stupid hide from it. The clever have technology, and hide it.
—The Book of Cataclysm
The brave hide behind technology. The stupid hide from it. The clever have technology, and hide it.
—The Book of Cataclysm
#326258
Posted Yesterday, 18:02
I will push your coins in 59 seconds
#326260
Posted Yesterday, 19:11
Gimme more weird roguelites .
TN
The brave hide behind technology. The stupid hide from it. The clever have technology, and hide it.
—The Book of Cataclysm
The brave hide behind technology. The stupid hide from it. The clever have technology, and hide it.
—The Book of Cataclysm
#326262
#326263
Posted Today, 01:04
When do games stop and the real games begin?
F O R T H E N S
#326264
Posted Today, 04:46
When it is done.
#326266
Posted Today, 08:23
Calm down Bob Wick...
#326267
Posted Today, 08:45
TheDR, on 12 February 2025 - 01:04, said:
When do games stop and the real games begin?
TN
The brave hide behind technology. The stupid hide from it. The clever have technology, and hide it.
—The Book of Cataclysm
The brave hide behind technology. The stupid hide from it. The clever have technology, and hide it.
—The Book of Cataclysm
#326268
Posted Today, 09:07
You can always not
#326270
Posted Today, 10:21
I'd rather fuck shitters up .
TN
The brave hide behind technology. The stupid hide from it. The clever have technology, and hide it.
—The Book of Cataclysm
The brave hide behind technology. The stupid hide from it. The clever have technology, and hide it.
—The Book of Cataclysm
#326272
Posted Today, 11:09
Slept too well
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