If your mother grew up in hot tropical conditions, does that mean that also your children would fare better in terms of their growth in tropical conditions as compared descendants of (genetically similar) temperature zone grown parents? I do not know, but if your mother was a fish, this could be the case.
In startlingly simple (and hence pleasing) factorial laboratory experiment Salinas and Munch (2011) exposed sheepshead minnow (Cyprinodon variegates) eggs from the same population to different temperature treatments, and followed the growth of individuals in different temperature treatments generation after. They found that the growth performance in subsequent generations in respect temperature depended on parental temperate treatment. In high temperatures, descendants for parents grown in hot temperatures outperformed those grown in lower temperatures.
These results suggest existence of strong transgenerational environmental effects of fish growth. While there is perhaps nothing particularly new in existence of such effects per se, the real punch-line is in the magnitude of the observed effects: the observed transgenerational temperature effect exceed (or are comparable to) what could be obtained with genetic response to selection. Hence, the results hint about possible importance of transgenerational environmental and parental effects on accommodating challenges posed by warming climate.
Salinas S,Munch SB (2011) Thermal legacies: transgenerational effects of temperature on growth in a vertebrate. Ecology Letters DOI: 10.1111/j.1461-0248.2011.01721.x