It may have become widespread because humans tended to select for more compact animals that were easier to feed, house, and transport, says co-author Robert Wayne from the University of California, Los Angeles.
Higher average ambient temperatures are also worth considering because they would tend to blur the concepts of endo- versus ectothermy: with high ambient temperatures, homoiothermy can be achieved in large, compact animals with a low metabolic rate (Spotila et al., 1991), whereas tachymetabolic species face overheating in the absence of effective physiological or behavioural cooling mechanisms.
In this paper, we present a compact small animal PET/SPECT/CT tri-modality system.
In contrast, plant mitogenomes exhibit larger size (most are from 200 to 700 kb) and are less compact than their animal counterparts due to the occurrence of non-coding sequences and duplicated fragments.
On the other hand, demosponge mtDNA is more typical of other animals – compact molecules, between 18 and 25 kb, with few or no introns, little intergenic space, and coding for twelve to fourteen respiratory chain proteins and two ribosomal RNAs [ 13, 15, 16, 18, 19].
Muscle growth is governed by myostatin, a protein that determines whether an animal has compact muscles tuned for rapid sprints or a leaner body suited for endurance.
The jaguar, a compact and well-muscled animal, is the largest cat in the New World and the largest carnivorous mammal in Central and South America.
Results: We updated and improved a classifier for compact proteins resembling short animal toxins that is based on a machine-learning method.
When it's dark and the cephalopods want to be transparent, the sacs form compact spheres, allowing the animals' glassy flesh to show.
When we burn coal, gas or oil, we are simply harnessing an archived version of that same energy from the sun, stored in plant and animal life, compacted and preserved under the earth's crust.
