lists in tkinter

[erock]

in both cases I get more then one random choice
I think I worked it out with a simple if else statement
but thank you so much for your help

import tkinter as tk
import random
root=tk.Tk()
def rand():

    animalist1=['dog','cat','cow','horse','duck','bird']
    animalist2 = ['Hippo', 'Bat', 'Fish', 'Whale', 'Bear', 'Monkey']

    animalrand1 = random.choice(animalist1)
    animalrand2 = random.choice(animalist2)

    if label.cget("text") in animalist1:
        label.configure(text=animalrand2)
    else:
        label.configure(text=animalrand1)
    #print (label.cget("text"))