A data set with Clutch Volume (cubic milimeters) and adult Body Mass (kg) in six different groups of animals: modern maternal-care bird species (Mat), modern paternal-care bird species (Pat), modern biparental-care bird species (BiPI), modern maternal-care crocodiles (Croc), non-avian maniraptoran dinosaurs thought to be ancestors of modern birds (Mani), and other non-avian dinosaurs (Othr). The question of interest was which group of modern creatures most closely matches the relationship in the maniraptoran dinosaurs.
ex1031A data frame with 443 observations on the following 6 variables.
the common name of the species
species genus
species name
a factor with 6 levels corresponding to the 6 groups of
animals: "BiP", "Croc", "Mani", "Mat",
"Othr", and "Pat"
the average body mass of individuals in the species (kg)
the total volume of all eggs in a clutch (average value for the species)
Varricchio, D. J., Moore, J.r., Erickson, G.M., Norell, M.A., Jackon, F.D. and Borkowski, J.J. (2008) Avian Paternal Care Had Dinosaur Origin Science 322: 1826--1828