Title: According to this graph, when did the extinction rate in mammals exceed that of birds, if at all? Post by: purpleberry on Apr 13, 2017 According to this graph, when did the extinction rate in mammals exceed that of birds, if at all?
A) 1600-1649 B) 1700-1749 C) 1800-1849 D) 1900-1949 Title: Re: According to this graph, when did the extinction rate in mammals exceed that of birds, if at ... Post by: cameroni on Apr 13, 2017 Content hidden
Title: Re: According to this graph, when did the extinction rate in mammals exceed that of birds, if at all? Post by: purpleberry on Jun 13, 2017 Great answer!!!
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