I do know that this one is called a " flat" head because it's flat.
我知道这个被称为“扁平”头,因为它是扁平的。
阿尔伯塔大学-恐龙古生物学
Some Hadrosaurus had elaborate crests on the top of their skulls, while others had flat heads.
一些鸭嘴龙的头骨顶部有精致的冠饰,而另一些鸭嘴龙则有扁平的头部。
少儿畅学课堂
Slow moving and calm, easy to recognize by the pattern of white spots on its body and its wide, flat head, the whale shark is a secretive ocean wanderer.
The other man looked like a Corsican shopkeeper. He was short and very dark with a flat head covered with thickly greased hair. He seemed to be a cripple. A chunky malacca cane with a rubber tip hung on the rail beside him.
So you might remember Dr. Robert Martin, who you're familiar with from episodes like " Breast Episode Ever" and " Why did King Tut have a flat head? " He's a biological anthropologist and has spent his career researching various aspects of Hominid evolution.