Here you will find the Poem A Moral Alphabet (excerpt) of poet Hilaire Belloc
D: The Dreadful Dinotherium he Will have to do his best for D. The early world observed with awe His back, indented like a saw. His look was gay, his voice was strong; His tail was neither short nor long; His trunk, or elongated nose, Was not so large as some suppose; His teeth, as all the world allows, Were graminivorous, like a cow's. He therefore should have wished to pass Long peaceful nights upon the Grass, But being mad the brute preferred To roost in branches, like a bird.1 A creature heavier than a whale, You see at once, could hardly fail To suffer badly when he slid And tumbled (as he always did). His fossil, therefore, comes to light All broken up: and serve him right. MORAL If you were born to walk the ground, Remain there; do not fool around. E stands for Egg.