Among its celebrated abbeys the diocese counted those of St. Memmius, founded in the fifth century by Alpinus; Toussaints, founded in the eleventh century; Montier-en-Der, founded in the seventh century by St. Bereharius, a monk from Luxeuil; Saint-Pierre au Mont, founded during the same period.
Arion alpinus auct. non Pollonera, 1887, a newly reinstated name by Manganelli et al. (2010) is Arion obesoductus Reischütz, 1973
Dhole of India, also known as the Indian Wild Dog, Cuon alpinus
These forest enclaves provide habitat to several at risk and endangered species, including the Bengal tiger (Panthera tigris), gaur (Bos gaurus), dhole (Cuon alpinus), sloth bear (Melursus ursinus), chousingha (Tetracerus quadricornis), and blackbuck (Antilope cervicapra).