Other mistake: When the film starts, Dolittle drinks from a yellow cup, the angle changes to behind his shoulder and it's perfectly obvious the cup is empty. Then, despite this, he keeps sipping and moving his mouth all the time.
Other mistake: When all the animals visit Dolittle at his apartment and he turns on the light in the hallway, you hear a click and the lights turn on, but there is no light switch.
Answer: Lucky is a mongrel mix. A mix of 2 breeds. A quick search suggests a possible terrier and lab mix.
Ssiscool ★