[baybal2]

> this headline seems to transform from "most plausible" into a causal link.

One of big alternative explanations why animals/humans get smaller closer to tropics is not because of lack of food, but because of too much of it

The quicker the species can grow to maturity, the more food calories can be spent for procreation.

[AlotOfReading]

Why do you think this is a relevant critique to the article/paper? The study is about a global trend in increasing appendage size within populations due to warming ("Allen's rule"), not whole body size ("Bergmann's rule"). Secondly, the role of food is acknowledged as a potential factor in the section on causality, but justifiably rejected as the sole factor.