What sounds do the animals make?

Recently I started asking Dart what sounds certian animals make. I was trying to be the good mom and work with him on learning these things. I asked him the basics of "What does a dog say?", "What does a cat say?", and so on. We went through dogs, cats, cow, horse, chicken, he could even tell me what a monkey sounds like.(I can thank Boots from Dora the Explore for that one). There I was a very proud mommy. My son is so smart! I was doing a great job.

Then my parents came for a visit. I decided I would show off how much Dart had been learning. I went though the regime of asking what sounds all the animals made. And he enjoyed being the center of attention as he answered all the quetions and we all cheered for how smart he is. Then it was time for a bit of a challenge. We started asking about some harder animals. A sheep, a rooster, even a lion, and a tiger. (Which for the record make the same sound, just the lion gets to be louder than the tiger.)
Finally, my mom asked him, "Collin, what sound does and elephant make?" Dart looked up at her, thought for a minute, and then replied with, "TRRRUUUUNNNNKKK!!" Then he smiled widely as we all just about fell on the floor laughing. How he figured that one out I will never know. But like I said, before, my kid is a genius.

So for future reference an elephant says,"TRRUUUNNNKKK!!"