Grammatical error: At 8:01 a banner states "World Renown Psychologist". It should be "Renowned".
At 12 minutes the zookeepers refer to their "matching tee shirts". The shirts they are wearing button down the front and have collars - these are NOT tee shirts.
The husband and wife zookeepers are husband and wife in real life.
At 48:12 the scientist seems to have lost his stick/weapon.
Grammatical error: At 57 minutes the detective asks the zookeepers "When was the last time you seen this thing?" "Seen" should be "saw".