Samuli Siltanen
@samulisiltanen.bsky.social
Matemaatikko, hämähäkkimies, luontokuvaaja, basisti ja voimailija.
That I do not know. Probably the difference is not all that drastic as in the families containing the four-eyed species the eyesight is pretty poor even with eight eyes.
Some underground-dwelling spiders have lost all their eyes, which is more straightforward to understand.
Some underground-dwelling spiders have lost all their eyes, which is more straightforward to understand.
August 11, 2025 at 5:42 AM
That I do not know. Probably the difference is not all that drastic as in the families containing the four-eyed species the eyesight is pretty poor even with eight eyes.
Some underground-dwelling spiders have lost all their eyes, which is more straightforward to understand.
Some underground-dwelling spiders have lost all their eyes, which is more straightforward to understand.
It’s very rare. Out of over 53000 spider species known to science, just about 100 have four eyes. Genera Tetrablemma, Nopsides, Notnops and Miagrammopes are examples; I could not find others.
August 10, 2025 at 8:26 PM
It’s very rare. Out of over 53000 spider species known to science, just about 100 have four eyes. Genera Tetrablemma, Nopsides, Notnops and Miagrammopes are examples; I could not find others.