animal group vs pod

animal group and pod both are nouns.

Word	Noun	Adjective	Verb	Adverb
animal group	Yes	No	No	No
pod	Yes	No	Yes	No

As nouns, pod is a hyponym of animal group; that is, pod is a word with a more specific, narrower meaning than animal group:

Other hyponyms of animal group include team, brood, flock, flock, fold, herd, herd, pack, pride, clowder, school, shoal, caste, colony, warren, breed, stock, strain, drove, litter.

animal group (noun)	pod (noun)
a group of animals	a detachable container of fuel on an airplane
	a group of aquatic mammals
	a several-seeded dehiscent fruit as e.g. of a leguminous plant
	the vessel that contains the seeds of a plant (not the seeds themselves)

animal group (verb)	pod (verb)
	produce pods, of plants
	take something out of its shell or pod