https://www.science.org/doi/10.1126/sciadv.abn6248
14 Sep 2022
Primates of modern aspect (euprimates) are characterized by a suite
of characteristics (e.g., convergent orbits, grasping hands and feet, reduced claws, and leaping), but the selective pressures responsible
for the evolution of these euprimate characteristics have long remained controversial. Here, we used a molecular phyloecological approach to determine the diet of the common ancestor of living primates (CALP),
and the results showed that the CALP had increased carnivory. Given
the carnivory of the CALP, along with the general observation that
orbital convergence is largely restricted to ambush predators, our study suggests that the euprimate characteristics could have been more specifically adapted for ambush predation. In particular, our behavior experiment further shows that nonclaw climbing can significantly reduce noises, which could benefit the ancestral euprimates’ stalking to ambush their prey in trees. Therefore, our study suggests that the distinctive euprimate characteristics may have evolved as their specialized
adaptation for ambush predation in arboreal environments.
"Besides owls and cats, highly convergent orbits and/or eyes can also be found in many other typical ambush predators, such as flounders (flatfish), barreleye fish, crocodile fish, stargazer, and tasselled wobbegong, suggesting
that highly convergent orbits and/or eyes are linked to typical ambush predators. Among the typical vision-directed ambush predators, chameleons particularly evolved highly mobile eyes; their eyes move independently of each other, but the moment they spot an insect, both their eyes are fixed
on it before they extend their tongue to capture it (68). This suggests that binocular vision, and hence high orbit convergence, may be particularly critical for typical ambush predators to gauge the prey distance accurately so that they could successfully launch a surprise attack. "
"The observation that high orbit convergence characterizes typical ambush predators, as discussed in the previous paragraphs, provides important insights
into the evolution of orbital convergence in euprimates. As shown by this study
and previous molecular and fossil evidence, the ancestral euprimates may have
been vision-directed predators with high orbit convergence. This may suggest that they were likely ambush predators (Fig. 3). Many living insectivorous primates—such as cheirogaleines, lorises, galagos, and tarsiers—show a hunting style featuring stalking and sudden striking with manual grasping, which characterizes ambush predation. In particular, tarsiers ambush their prey through a sudden leap. A similar ambush strategy can be observed even in more advanced euprimates, including chimpanzees and humans. This may suggest that ambush predation is common in living primates, and it is possible that the ancestral euprimates were also ambush predators."
Op zondag 18 september 2022 om 03:37:21 UTC+2 schreef Primum Sapienti:
https://www.science.org/doi/10.1126/sciadv.abn6248Thanks. Yes, likely. I wrote this already years ago in my first book, and now repeated it in my 2d book: "De evolutie van de mens - waarom wij rechtop lopen en kunnen spreken" (Eburon Utrecht 2022).
14 Sep 2022
Primates of modern aspect (euprimates) are characterized by a suite
of characteristics (e.g., convergent orbits, grasping hands and feet, reduced claws, and leaping), but the selective pressures responsible
for the evolution of these euprimate characteristics have long remained controversial. Here, we used a molecular phyloecological approach to determine the diet of the common ancestor of living primates (CALP),
and the results showed that the CALP had increased carnivory. Given
the carnivory of the CALP, along with the general observation that
orbital convergence is largely restricted to ambush predators, our study suggests that the euprimate characteristics could have been more specifically adapted for ambush predation. In particular, our behavior experiment further shows that nonclaw climbing can significantly reduce noises, which could benefit the ancestral euprimates’ stalking to ambush their prey in trees. Therefore, our study suggests that the distinctive euprimate characteristics may have evolved as their specialized
adaptation for ambush predation in arboreal environments.
"Besides owls and cats, highly convergent orbits and/or eyes can also be found in many other typical ambush predators, such as flounders (flatfish),
barreleye fish, crocodile fish, stargazer, and tasselled wobbegong, suggesting
that highly convergent orbits and/or eyes are linked to typical ambush predators. Among the typical vision-directed ambush predators, chameleons particularly evolved highly mobile eyes; their eyes move independently of each other, but the moment they spot an insect, both their eyes are fixed on it before they extend their tongue to capture it (68). This suggests that
binocular vision, and hence high orbit convergence, may be particularly critical for typical ambush predators to gauge the prey distance accurately
so that they could successfully launch a surprise attack. "
"The observation that high orbit convergence characterizes typical ambush predators, as discussed in the previous paragraphs, provides important insights
into the evolution of orbital convergence in euprimates. As shown by this study
and previous molecular and fossil evidence, the ancestral euprimates may have
been vision-directed predators with high orbit convergence. This may suggest
that they were likely ambush predators (Fig. 3). Many living insectivorous primates—such as cheirogaleines, lorises, galagos, and tarsiers—show a hunting style featuring stalking and sudden striking with manual grasping, which characterizes ambush predation. In particular, tarsiers ambush their prey through a sudden leap. A similar ambush strategy can be observed even in more advanced euprimates, including chimpanzees and humans. This may suggest that ambush predation is common in living primates, and it is possible that the ancestral euprimates were also ambush predators."
Ambush hunting explains why primates "walk upright and speak"??
Mermaid tales again??
DD'eDeN aka note/nickname/alas_my_loves wrote:-
Ambush hunting explains why primates "walk upright and speak"??
Mermaid tales again??
So now you interpret Aquatic Ape as a French term meaning "Ambush
Hunting." Congratulations. Even within the depths of savanna
nonsense we find you once again digging ditches.
-- --
https://jtem.tumblr.com/post/695769753873235968
DD'eDeN aka note/nickname/alas_my_loves wrote:
Ambush hunting explains why primates "walk upright and speak"??
Mermaid tales again??
So now you interpret Aquatic Ape as a French term meaning "Ambush
Hunting." Congratulations. Even within the depths of savanna
nonsense we find you once again digging ditches.
Ooh, some exciting news about penises
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