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Anonymous A (OP) replied with this 2 hours ago, 8 minutes later, 56 minutes after the original post[^][v]#1,443,923
@1,443,903 (A) @1,443,905 (A)
Btw birds and reptiles (birds technically are reptiles but nobody thinks about them that way) are diapsids so they have an antorbital fenestra. From the front you can’t tell, but humans are Dimetrodon are both synapsids so we both lack an antorbital, but humans actually do have the second hole behind our eyes, it’s just we have a weird skull shape so it’s on the side where our zygomatic arch is.
Anonymous A (OP) double-posted this 2 hours ago, 9 minutes later, 1 hour after the original post[^][v]#1,443,925
The temporal fenestra behind your eyes allows your muscles to attach to your mandible from the rest of your skull so you can chew. In apes, it’s hard to tell it’s a hole unless you look at it from an above angle, and then you can tell it’s like a loop made of bone.