Yes, they do.
Placental mammals respirate using the umbilical cord. The cord, which is attached to both baby and mother, delivers food and oxygen to the baby.
A belly button is created by an umbilical cord, so all placental mammals have an umbilical cord. Animals that are hatched would not have an umbilical cord and not have an belly button.
They are placental mammals.
In placental mammals, the umbilical cord (also called the birth cord or funiculus umbilicalis) is a conduit between the developing embryo orfetus and the placenta.
Horses are placental mammals like dogs, cats, and humans. An unborn horse receives its nutrients from its mother via the umbilical cord.
Yes. A gorilla nourishes its baby inside a uterus via an umbilical cord and the baby is born relatively well-developed. All placental mammals, or eutherian mammals, do this.
I believe the question should have been " What is the umbilical region? If that was the question , then with reference to mammals-- The umbilical region is a small area of of about two inches' radius with the centre at the centre of the navel. Navel is another term for the umbilicus. The umbilicus represents the point at which the umbilical cord of placental mammals was connected to the mother'womb before birth.
Humans have umbilical scars because we are born viviparous with placental development, where the umbilical cord connects the fetus to the mother. Other species that are oviparous or have different modes of reproduction do not have prominent navels because they do not rely on umbilical cords for nourishment.
No, kangaroos are not placental mammals, and the belly button is a vestage of where the mother's placenta connects to the fetus.No, kangaroos are not placental mammals, meaning that they are not connected via an umbilical cord when they are developing in their mother's womb. The bellybutton is merely a scar left from the where the umbilical cord was at. All placental mammals like humans, dogs, cats, etc. have bellybuttons, while marsupials and monotremes, (egg laying mammals, which consists of only 2 species, the platypus and echidna) have no bellybuttons because they are not connected to their mother by an umbilical cord.
No. Platypuses are not placental mammals, but monotremes, meaning that they reproduce by laying eggs. The young do not develop in the mother's womb, and therefore do not receive their nutrition via an umbilical cord.
In placental mammals it is via the umbilical cord connected to the placenta on the mother's uterus lining.In most other animals it is from the yolksack of the egg.
placental vein