Somewhat more complete skeletal remains were discovered in 2001 , prompting the view that `` Pakicetus '' was primarily a land animal about the size of a wolf , and very similar in form to the related mesonychids .
Complete skeletons were discovered in 2001 , revealing that `` Pakicetus '' was primarily a land animal , about the size of a wolf , and very similar in form to the related mesonychids .