Prenatal thyroid hormone exposure increases growth but not oxidative stress in a wild passerine species

Abstract

statement: Thyroid hormones have been overlooked in the context of hormone-15 mediated maternal effects. We found that yolk thyroid hormones in a wild bird species 16 increase growth without incurring oxidative stress. 17 Abstract 18Hormones transferred from mothers to their offspring are thought to be a maternal tool for 19 mothers to prepare their progeny for expected environmental conditions, thus increasing 20 fitness. Thyroid hormones (THs) are crucial across vertebrates for embryonic and post-natal 21 development and metabolism. Nevertheless, the studies that investigated the consequences of 22