This creature looks like a normal frog, with moist, mottled, blackish-green skin, but grown to truly monstrous size.
Giant Frog CR 1
N Medium Animal
AC 12, touch 11, flat-footed 11 (+1 Dex, +1 natural)
hp 15 (2d8+6)
Fort +6, Ref +6, Will –1
Speed 30 ft., swim 30 ft.
Space 5 ft.; Reach 5 ft. (15 ft. with tongue)
Str 15, Dex 13, Con 16, Int 1, Wis 8, Cha 6
Base Atk +1; CMB +3 (+7 grapple); CMD 14 (18 vs. trip)
Feats Lightning Reflexes
Environment temperate or warm marshes and aquatic
Organization solitary, pair, or army (3–8)
Tongue (Ex) A giant frog's tongue is a primary attack with reach equal to three times the frog's normal reach (15 feet for a Medium giant frog). A giant frog's tongue deals no damage on a hit, but can be used to grab. A giant frog does not gain the grappled condition while using its tongue in this manner.
Giant frogs have razor-sharp teeth lining their mouths. They are 6 feet long and weigh 200 pounds.
Starting Statistics: Size Medium; Speed 30 ft., swim 30 ft.; AC +1 natural armor; Attack bite (1d6); Ability Scores Str 15, Dex 13, Con 16, Int 1, Wis 9, Cha 6; Special Qualities low-light vision, scent, tongue, pull.
4th–Level Adv.: Ability Scores Str +2, Dex +2; Special Qualities swallow whole.
This small frog is bright green and red, with electric-blue stripes on its hind legs.
Poison Frog CR 1/2
N Tiny animal
Init +1; Senses low-light vision; Perception +3
AC 13, touch 13, flat-footed 12 (+1 Dex, +2 size)
hp 4 (1d8)
Fort +2, Ref +3, Will –1
Speed 10 ft., swim 20 ft.
Melee bite +3 (1 plus poison)
Space 2-1/2 ft.; Reach 0 ft.
Str 2, Dex 12, Con 11, Int 1, Wis 9, Cha 10
Base Atk +0; CMB –1; CMD 5 (9 vs. trip)
Feats Weapon Finesse
Environment warm marshes and aquatic
Organization solitary, pair, or army (3–12)
Poison (Ex) Injury; save Fort DC 10; frequency 1/round for 6 rounds; effect 1d2 Con damage; cure 1 save
Poisonous frogs are a bright green color, with additional bright yellow, red, or blue markings. They are just over a foot long and weigh 10 pounds. The poison of poisonous frogs is often gathered by primitive tribes and used to coat darts and arrows for hunting.
You can make a larger poison frog either by applying the giant simple template or by giving a normal giant frog a poison frog's venomous bite.