Why Roosters Have Wattles...
A wattle is the bit of flesh below a rooster's bea... ...w a rooster's beak. What purpose does it serve? Carolynn Smith at Macquarie University in Australia conducted a... ...vior of hens changed wasn’t an option. Instead, Smith created four animated roosters. The animated roos... ...t the same to each of...
http://www.neatorama.com/2009/11/03/why-roosters-have-wattles/
