When compared to a normal eight-year-old boy who should have a thymus gland weighing about 100 grams, this level of thymic atrophy was astounding. Clinical situations and stress-induced thymic ...

D. et al. Delineation of the thymic and bursal lymphoid systems in the chicken. Nature 205, 143–146 (1965). Cooper, M. D. et al. The functions of the thymus system and the bursa systems in the ...

Or more specifically, a curious organ in their rear known as the bursa ... from the thymus by removing the organ in rabbits, but hadn’t seen significant changes. Glick’s chicken experiment ...