Critical thinking is the ability to think clearly and rationally about what to do or what to believe. It includes the ability to engage in reflective and independent thinking. Someone with critical thinking skills is able to do the following 1  : understand the logical connections between ideas.  identify, construct and evaluate arguments.
Not Medical Advice: The uterus (which is continuous with the cervix) weighs 2.5 ounces (70 g) on average. It is a mostly solid, although hollow and composed of smooth muscle. It is pear-shaped, and typically measures 3 inches (7.6 cm) in length.
It depends on the breed of the baby, and several other factors that take place in the womb. Like human babies, the condition of the mother and what/how much she eats play a role. I have seen anywhere from 20 (very sick and didnt make it) to 75 lbs (born to a Percheron). more.