what do you mean by getting thicker?
you mean putting on weight,if it is , yes one can , provide they take proper diet, and regular exercise.
no the female pelvis is bigger
Generally in the animal kingdom, males are larger than females and therefore would have thicker necks.
Generally females are larger and thicker.
male tamaraws typically have thicker necks
Yes,that's a fact.
Male alligator snappers have thicker and longer tails.
males should have a thicker longer tail than females
Scientifically, there is no difference between male and female hair. It is said though that female hair is thicker and shinier than a males but that is because of the way females treat and care for their hair.
A male will have a slightly concave bottom shell (it will curve in). The female will have a flat bottom shell. Also a male's tail is thicker than a female's.
A male ornate box turtle can be easily distinguished from a female by it's red eyes, the female's being brown, it's plastron or bottom shell is curved inward, in order to be able to mount the female shell, and the male tail is longer and thicker than a female.
A female redhead slider is physically larger and have a smaller tail. The males have longer, thicker tails and longer front claws. The only way to tell for certain is to see a vet.
The center is thicker than the borders.The center is thicker than the borders.The center is thicker than the borders.The center is thicker than the borders.