Oct 11, 2016 · Fig. 1. Octopus on land. Source: BBC. Your sub questions; I think small octopuses may survive longer, since passive gas exchange is the mode of survival on land. In general, an increase in diameter causes the volume to increase with a third power, while surface increases with a power of two.

This is just a wild guess, but for movement on a surface in which legs are lifted from the surface, six legs might be sufficient to provide three points of support at all times (think three-legged stool) while allowing relatively rapid movement (legs on both sides can be moved simultaneously), but such might be both less stable and less friendly to variable direction of movement (since legs ...

Feb 24, 2013 · The toxin is synthesized by a symbiotic bacteria and is found not only in fugu but also blue-ringed octopus, rough-skinned newts and some sea slugs. These animals probably all began with enough intrinsically low sensitivity to the toxin to take on the symbiont and probably evolved to be completely insensitive.

Jun 4, 2020 · There is a large number of C2H2 zinc-finger proteins (C2H2 ZNFs) (~1800), interleukin-17-like genes (IL17-like), G-protein-coupled receptors (GPCRs), chitinases and sialins paralogues in the octopus genome. However, there does not exist a comprehensive analysis of orthologous proteins in the octopus that I can find.

$\begingroup$ monkey eyes can move so fast as to examine 10 branches and stems every second while they jump through the trees with awesome focus and positional mapping. chimps eyes have positional mapping for tree climbing that is 10x faster than human eye movement, so eyes have specializations for fine movement, distance, speed, narrow, wide, all very refined. …

Jun 25, 2022 · Mollusca -> Cephalopoda (like squid and octopus) -> Nautilaceae -> Nautilidae - comprising of six extant species. They range the 200m to 700m depth of the Indo-Pacific, scavenging carrion. They seem to have been more-or less the same over the last 500 million years according to the fossil record - then being up to 2.5 metres in shell diameter ...

Dec 22, 2024 · I spotted these canine paw prints in the snow on crown (public) land in Eastern Ontario, Canada. They're not dog prints; the location is too remote for that. I figure the only options are coyote or wolf. How can I differentiate between the two?

Oct 29, 2015 · Apparently, there is an advantage to having 6 legs in the insect world. What is that advantage, if anything? Why would such an advantage exist for insects, but not for other, larger land animals? "Legs" is a tricky term, with insects. Colloquially, in the terrestrial world, they are things that an organism walks on.

Jan 9, 2016 · which tells me it is probably a Rhizostoma Octopus - Barrel or Root Mouth JellyFish (name only - still a jellyfish). The biggest identifying characteristic seems to be the eight legs. (Clearly a jelly fish - but still a very confusing trait). My question is: What are the identifying characteristics of a Jellyfish?

$\begingroup$ The problem is not just temperature but the combination of temperature and humidity. A high temperature is survivable as long as the body can use evaporation (sweating) to keep the core temperature below ca 38°.