1 gen 1955 anni - Dr. Robert Stewart first to summarize ecological ties between species, food habits, and habitats.
Descrizione:
Dr. Robert Stewart conducted studies in 1950s, published in 1962 about Water foul populations in the upper Chesapeake Bay region.Aggiunto al nastro di tempo:
Data:
1 gen 1955 anni
Adesso
~ 70 years ago