Answer: I can only list one (sorry): saber-toothed cats.
Explanation: . . .
If a cell that has three pairs of chromosomes, the fraction of the gametes produced from this cell will contain only maternal chromosomes would be 1/8.
In this case, the cells have three pairs of chromosomes. Then, the calculation to find the fraction would be: (1/2)^3= 1/8
This is because it has many parts, arteries, and tubes that pass blood around the body. It is hard because it has many parts which are difficult to be cut open. Hope I helped!