Even though all herbivores eat only plants, the diets of different herbivore species vary a great deal. Some herbivores are selective and only consume part of the plant, such as the fruit, leaves, nectar, seeds, sap, roots, or bark.
Dogs come into heat every six months and it lasts for 3 weeks, but typically only bleed in the 2nd week. The amount of blood varies by size of dog, so the larger the dog the more blood is produced. 454 Views Â· 1 Upvote
Understanding the Heat Cycle. 1  During the first part of her heat cycle, which lasts about seven days, the bitch with exhibit a swollen vulva and bleeding. You may notice male dogs giving her more attention. 2  During the second part of heat, which also lasts an average of seven days, the bleeding will slow down and she will accept mates.