Second Color Illustration of New Species (IMAGE) Field Museum Caption This illustration depicts Isothrix barbarabrownae, a newly discovered species of Neotropical rodent, in its arboreal habitat. The strikingly unusual animal has long dense fur, a broad blocky head, thickly furred tail and a blackish crest of fur on the crown, nape and shoulders. It is about the size of a squirrel. Credit Illustration by Nancy Halliday, Courtesy of The Field Museum Usage Restrictions only for articles about this research License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.