The average weight of dog breeds, and the average lifespan of dog breeds, using over 50 individuals for each breed.
data(DogsLife)A data frame with 73 rows and 5 columns:
The breed name
The average breed weight (in kg)
The average breed litter size
The average breed birthweight (in kg)
The average breed lifespan (in years)
The original data list many more breeds, but these are (as best as I can determine) those based on at least 50 individuals, as noted in the original article.
da Silva, J., & Cross, B. J. (2023). Dog life spans and the evolution of aging. The American Naturalist, 201(6), E140--E152.