While you can wear shorts on safari in Tanzania, it is not the most recommended clothing item for several reasons.

Firstly, Tanzania can be hot during the day, and wearing shorts can help you stay cool and comfortable. However, you may also be exposed to the sun and insects, especially if you are on a walking safari or exploring areas with tall grasses or bushes. Insects can bite or sting, and long pants can help protect your legs.

Secondly, some areas require visitors to dress modestly out of respect for the local culture and customs. Wearing shorts may be seen as disrespectful or inappropriate, especially when visiting local villages or communities.

Therefore, it is generally recommended to wear lightweight long pants or trousers on safari in Tanzania, especially during game drives and bush walks. Long pants can provide protection against the sun, insects, and thorny vegetation. If you want to wear shorts, it is best to pack a lightweight and long pair of pants in case you need to cover up.

Overall, it's important to dress appropriately for the activities and weather conditions, while also being respectful of the environment and local customs