Gregg's Stream Frog vs Merriam’s Pocket Mouse

Craugastor greggi compared with Perognathus merriami

Key Differences

• Gregg's Stream Frog is Endangered while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Gregg's Stream Frog	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Anura (Frogs & Toads)	Rodentia (Rodents)
Family	Craugastoridae	Heteromyidae
Genus	Craugastor	Perognathus
Species	Craugastor greggi	Perognathus merriami

Evolutionary Relationship

Gregg's Stream Frog and Merriam’s Pocket Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gregg's Stream Frog

EN — Endangered

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Gregg's Stream Frog	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gregg's Stream Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.