The reason that causes the low production of rhino in parks.

The listening argues against the three reasons mentioned in the reading.

1. Infertility can be cured by regulating the rhino’s hormone.

2. Advanced radiographic image equipment can detect the early anomaly of the bone and feet, which can heal the foot disease.

3. The reason for the little rhino’s brain disorder is that its mother is so old that it carries toxic chemical element. So letting younger rhino bear child is one of the solution.

Three causes can explain the low production of rhino in parks.

1. Infertility results from the alfalfa and hay in animal fodder, which increasing it hormone.

2. Rhinos develop foot disease for often walking on the hard surface.

3. Brain disorder in the newborn rhinos makes them cannot live long.