What are some differences between animals and plants in terms of harvestin energy

Since plants are capable of photosynthesis, do they need ATP? What is the point of photosynthesis? What is the equivalent in animals?

Photosynthesis is:
CO2 + H2O -------> C6H12O6 (glucose) + O2 (light is the catalyst)
Respiration is photosynthesis' eqtn reversed:
O2 + glucose ---> CO2 + H2O + ATP (these eqtns aren't balanced)
The products of photosynthesis serve as fuel directly in autotrophs and indirectly in heterotrophs (who have to consume this potential energy secondarily).
Respiration then uses this stored energy (from the products of photosynthesis) to make ATP.
Respiration energy eventually leaves the ecosystem as heat.
Basically, we use the products of photosynthesis to drive our respiration, making photosynthesis and respiration a cycle. :)

Yes they need ATP. The produce ATP in the chlorplasts. The point of photosysthesis is the production of ATP and sugars to power the plant cell.

Animals can't produce sugars from sunlight, so we have to eat to obtain it.