3. 18 Number of thoracic vertebrae 7 Number of cervical vertebrae 36 Average pulse rate 1-2 seconds Average capillary refill rate 12 Average respiration rate 36 Number of teeth in a mare 40 Number of teeth in a stallion 24 Number of teeth in a foal 21 Length of estrous cycle in days 340 Length of gestation in days
4. 8 Number of segments in the sternum 14 Total number of toes possessed by Eohippus 100.5 degrees Fahrenheit Average equine temperature 64 (32 pairs) Number of chromosomes 8 Number of pairs of true ribs 10 Number of pairs of false ribs 18 Number of pairs of ribs 20 (18-21) Number of coccygeal vertebrae 5 Number of sacral vertebrae 6 Number of lumbar vertebrae
5. 11 Number of Triple Crown winners 220 Yards in a furlong 660 Feet in a furlong 4 Length of the cecum in feet 60 Length of the esophagus in inches 100 Length of alimentary canal in feet 8-17 Number of quarts held by the small intestine 48 Number of quarts held by the small intestine 80 Number of quarts held by the large intestine
![Useful Numbers ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)