Table 2.

Results of regressions of mass-specific production and adult body mass. The ‘combined’ rows report the result of GLMs testing for the significance between intercepts and slopes between the lineages. In both models, neither the intercepts nor the slopes were significantly different between the lineages.

trait	lineage	slope	s.e.	intercept	s.e.	d.f.	r2	p
mass-specific	placentals	−0.37	0.01	1.17	0.05	315	0.69	0.00
production	marsupials	−0.40	0.04	1.15	0.11	62	0.66	0.00
	combined	−0.37	0.02	1.16	0.08	378	0.79	0.00
corrected	placentals	−0.32	0.01	0.71	0.04	315	0.67	0.00
mass-specific	marsupials	−0.33	0.04	0.63	0.13	46	0.59	0.00
production	combined	−0.33	0.04	0.74	0.11	362	0.76	0.00