Puppies can be born green, but luckily it doesn’t last long. Light-colored puppies can have their fur dyed after coming in contact with biliverdin in the womb.
Pregnancy can impair a carnivore’s ability to hunt and chase prey. This caused the gestation period to become shorter so that they wouldn’t take long breaks from hunting.
It’s called the baby schema effect. The theory suggests that our brains start releasing dopamine and oxytocin when we look at puppies.
At about two or three months, they will begin losing their baby teeth, and their adult teeth will come in.
Dogs are considered adults at one year old. However, maturity depends on the breed.