生物
有袋动物
异速滴定
大黄鼠
Phascolarctos cinereus公司
个体发育
动物
早熟的
大脑大小
尤金袋鼠
单孔
解剖
鸭嘴兽
脊椎动物
生态学
人口
内分泌学
医学
分类学(生物学)
生物化学
人口学
放射科
社会学
分类学
基因
磁共振成像
作者
Carmen De Miguel,Arthur Saniotis,Agata Cieślik,Maciej Henneberg
出处
期刊:Biology
[MDPI AG]
日期:2022-06-10
卷期号:11 (6): 900-900
被引量:1
标识
DOI:10.3390/biology11060900
摘要
There exists a negative allometry between vertebrate brain size and body size. It has been well studied among placental mammals but less is known regarding marsupials. Consequently, this study explores brain/body ontogenetic growth in marsupials and compares it with placental mammals. Pouch young samples of 43 koalas (Phascolarctos cinereus), 28 possums (Trichosurus vulpecula), and 36 tammar wallabies (Macropus eugenii) preserved in a solution of 10% buffered formalin, as well as fresh juveniles and adults of 43 koalas and 40 possums, were studied. Their brain size/body size allometry was compared to that among humans, rhesus monkeys, dogs, cats, rats, guinea pigs, rabbits, wild pigs, and mice. Two patterns of allometric curves were found: a logarithmic one (marsupials, rabbits, wild pigs, and guinea pigs) and a logistic one (the rest of mammals).
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