Animals with shortest memory

 1. Bees

               Bees have a memory span of few seconds when it comes to remembering locations though the can recall complex patterns related to navigation.

2.  Chimpanzees

                  Though generally intelligent,  chimpanzees find it difficult to remember arbitrary numbers beyond a few seconds.

3.  Fruit flies

                    These tiny insects have a memory span of 4 seconds.

5.  Sea lions

                       They have a memory span of 10 seconds.

6.  Squirrels 

                          While squirrels are great at hoarding food, their memory of  some specific locations can be short term.