This theory is supported by the discovery that in species of monkeys and apes with the highest testes-to body-weight ratios, the females often mate with many males.

Further, the retardation of maturity not only preserved a better brain/ body-weight ratio but also extended the period of educability and cognitive development which characterizes primate childhoods.

The Council, however, did not consider that a species-dependent approach was appropriate, and the maximum 5% fin- versus live body-weight ratio set in the regulation was certainly not presented as being based on scientific considerations alone.

Overall, the brain to body weight ratio of A. zeuxis is considered to be strepsirrhine-like and perhaps even non-primate like.

When deciding on this regulation, the Council did not consider it appropriate to adopt a species-specific approach regarding the fin to body weight ratio.

Experiment 3 Figure 7shows the heart weight to body weight ratio for rats that received a daily intra-peritoneal injection of either the beta-blocker propanolol or saline for 1 month.

The brain to body weight ratio also varies greatly from person to person; it would be much higher in an underweight person than an overweight person, and higher in infants than adults.

Having the largest wingspan to body weight ratio of any bird, they are essentially aerial, able to stay aloft for more than a week, landing only to roost or breed on trees or cliffs.

A single 5% fin to live body weight ratio applicable to the whole shark-catch of a vessel is a realistic, feasible, controllable, simple and proportionate method of preventing shark finning practices from spreading.

Significant colon inflammation was induced in the colitic groups compared with the saline treated animals as measured by the colon macroscopic score, colon weight and colon weight/ body weight ratio (p<0.05)(Table II).

Secondly, because the Commission believes it would be unwieldy to start revising the fin to body weight ratio or introducing some species-specific approach to the Shark Finning Regulation without new measures to ensure sustainable shark fishing.

Brain-to-body mass ratio, also known as the brain to body weight ratio, is the ratio of brain weight to body weight, which is hypothesised to be a rough estimate of the intelligence of an animal.