Sentences with phrase «juvenile rats»
Among health issues that some advocates have linked to chemical exposures: early pubescence in girls (BPA hastens the onset of pubescence in juvenile rats); asthma (car and truck exhaust can induce or worsen lung inflammation), and genital malformation (phthalates have been linked to lower sperm count and deformed penises in rats).
blogs.scientificamerican.com
Accordingly, we feel justified in cautiously advancing and empirically cultivating the theoretical possibility that there is some kind of an ancestral relationship between the playful chirps of juvenile rats and infantile human laughter.
Aside from anecdotes, we know very little about nonhuman primate laughter and humor, but some of the most significant findings to emerge in comparative science over the past decade have involved the unexpected discovery that rats — particularly juvenile rats — laugh.
Sergio Pellis at the University of Lethbridge in Alberta, Canada, put juvenile rats in cages that allowed them to sniff, groom and interact with others, but not to engage in rough - and - tumble play.
Sexually dimorphic effects of a prenatal immune challenge on social play and vasopressin expression in juvenile rats.
Experiments with adult and juvenile rats, pictured here, confirmed the insular cortex, an information - processing region of the brain in humans as well, is central to reactions like approach or avoidance of others, a team of Boston College neuroscience researchers has found.
In life, the creature likely measured about 24 centimeters (9.4 inches) in length and weighed between 50 and 70 grams — about the size and proportions of a juvenile rat, says Zhe - Xi Luo, a vertebrate paleontologist at the University of Chicago in Illinois.
Other works like «Dark Stuff» (below) are mind - boggling in their eclectic choice of materials, edging on almost grotesque — 189 mummified animals, consisting of 67 field mice, 5 adult rats, 42 juvenile rats, 44 garden shrews, 1 fox, 1 squirrel, 1 weasel, 13 carrion crows, 7 jackdaws, 1 blackbird, 1 sparrow, 1 robin, 1 toad, 1 gecko, 3 garden snail shells.