It is important to properly and appropriately cite references in scientific research papers in order to acknowledge your sources and give credit where credit is due. Science moves forward only by building upon the work of others. There are, however, other reasons for citing references in scientific research papers. Citations to appropriate sources show that you've done your homework and are aware of the background and context into which your work fits, and they help lend validity to your arguments.
Older baby bunnies who are found outside of the nest may not be orphaned or in need of assistance. This is most often the case. Baby cottontails are born without fur but develop a full coat in a week. Their eyes open in 10 days, and in three to four weeks they are weaned.
A newborn rabbit will have little to no hair. A rabbit that is around 14 days old will have a complete coat. Check the baby cottontail rabbit's ears. A baby's ears are closed between 1 and 7 days old. The ears become erect between the age of 9 and 13 days. View the rabbit's eyes. The eyes of a baby cottontail rabbit open between 5 and 7 days after birth. Note the baby's reaction to loud noises. If a baby cottontail rabbit is nervous and jumpy in response to sudden noises, it is at least 21 days old.