My horse trainer told me that horses know what is good for them and what is bad for them, if he eats it and nothing happens to him then he's fine and he can eat it, but if he refuses it might mean that he doesn't like it or he thinks it's bad for him. Page 1 of 3 1 2 3 Last.
1 Measuring the length of long bones can give an estimate of age for children, but this technique is useful only until bones have stopped growing. 2  The tibia completes growth at about age 16 or 17 in girls, and 18 or 19 in boys.he ends (epiphyses) and bony shafts (diaphyses) of long bones form separately in the womb. At birth, the ends of the long bones are mainly cartilage, with centers of bone beginning to form inside.
How do scientists know how old an object or human remains are? What methods do they use and how do these methods work? In this article, we will examine the methods by which scientists use radioactivity to determine the age of objects, most notably carbon-14 dating. Keep Reading Below Carbon-14 dating is a way of determining the age of certain archeological artifacts of a biological origin up to about 50,000 years old. It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities.