Armoured Nocturnal Mammal
Puzzle 17 of ABBA Easy Pack
Question is: Armoured Nocturnal Mammal
and the answer is: ARMADILLO
Word Meaning:
ARMADILLO — Any of the burrowing mammals covered with bony, jointed, protective plates, families Dasypodidae and Chlamyphoridae in the order Cingulata, found in the Americas, especially in South America.
Definitions from Wiktionary.