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The lack of saccadic eye movements forces the toad to hold its eyes in rigid positions. Therefore, it must decide whether the object is "prey" or "non-prey" before moving itself. If it orients towards an object, it must already have decided "prey" and then commits itself to snapping by reducing the thresholds for subsequent prey-catching responses.
Duttaphrynus melanostictus is commonly called Asian common toad, Asian black-spined toad, Asian toad, black-spectacled toad, common Sunda toad, and Javanese toad. It is probably a complex of more than one true toad species that is widely distributed in South and Southeast Asia. [1] The species grows to about 20 cm (8 in) long.
The warts are always darker than the skin of the toad. Some specimens have a white dorsal line in the middle of their backs. The ventral surface or belly is usually cream colored with a few dark spots in the breast area. This subspecies can be distinguished from the above-mentioned species in the same manner as for the eastern American toad.
The western toad or boreal toad (Bufo boreas, Salish: snakʷkʷaneʔ [4]) is a large toad species, between 5.6 and 13 cm long, of western North America. It has a white or cream dorsal stripe, and is dusky gray or greenish dorsally with skin glands concentrated within the dark blotches. In Montana, this toad occurs in the western portion of the ...
The western toad or boreal toad (Anaxyrus boreas) is a large toad species, between 5.6 and 13 cm long, of western North America. It has a white or cream dorsal stripe, and is dusky gray or greenish dorsally with skin glands concentrated within the dark blotches.
The western toad or boreal toad (Bufo boreas) is a large toad species, between 5.6 and 13 cm long, of western North America. It has a white or cream dorsal stripe, and is dusky gray or greenish dorsally with skin glands concentrated within the dark blotches.
The western toad (Anaxyrus boreas) is a large toad species, between 5.6 and 13 cm (2.2 and 5.1 in) long, native to western North America. [ 1 ] [ 3 ] [ 4 ] A. boreas is frequently encountered during the wet season on roads, or near water at other times.
The California toad is less blotched (reduced dorsal melanin) than the boreal toad. It has a wider head, larger eyes, smaller feet, and a weaker development of the margins along the dorsal stripe. The largest western toad larvae at 56 mm is also of the California toad. The toad has a wide range of dorsal coloration, from light gray to green to ...