What is the difference between a toad and a frog?

The main differences are different subject classification, different morphological characteristics and different living habits, as follows:

First, the classification of disciplines is different.

1, toad

Toad, scientific name toad, not toad, toad. Vertebrates, Amphibia, Anura, Bufonidae.

2. Frogs

Frog, the scientific name is black-spotted lateral fold frog. Chordata, Amphibia, Anura, Ranidae.

Second, the morphological characteristics are different.

1, toad

Toads are amphibians. The most common toad is the big toad, commonly known as toad. The skin is rough, and the back is covered with pimples of all sizes, which are sebaceous glands. The largest pair is the retroauricular gland located above the tympanic membrane of the head. The white venom secreted by these glands.

2. Frogs

Frog's body can be divided into three parts: head, trunk and limbs:

1. header

Frog's head is flat, slightly triangular and its snout is slightly sharp. The mouth is wide and horizontal, and consists of upper and lower jaws. There are 1 external nostril at the front end of the dorsal maxilla, and there are alars at the outer edge of the external nostril. Eyes are large and prominent, born on the left and right sides of the head, with upper and lower eyelids, and a translucent transient membrane on the inner side of the lower eyelid.

② Trunk part

The frog's trunk is short and wide, and there is a small hole between the legs at the back end of the trunk, which is a cloacal hole. ?

③ Limbs

The forelimb is short and consists of five parts: upper arm, forearm, wrist, palm and fingers. There are no webbed fingers. In the breeding season, the male frog has an enlarged protuberance on the inside of the root of the first finger, which is called a marriage tumor and is used to hold the right. The hind limbs are long and developed, which are divided into five parts: thigh, tibia, tarsal bone, metatarsal bone and toe. 5 toes, webbed between toes. There is a hard keratinization distance on the inside of the first toe.

Third, different living habits.

1, toad

I like to hide in mud pits, under wet stones, in the grass and beside ditches. Skin loses moisture easily, so it is often hidden during the day and becomes active at night and dusk. Most adult toads live in underwater sediments or wet soil on land for winter. Stop eating, store glycogen in the body to maintain the lowest metabolism, and end hibernation when the temperature rises to 10 ~ 20℃ in the following year. They hunt and move at night, feeding on beetles, moths, snails and fly maggots.

2. Frogs

Frogs often inhabit rivers, ponds and rice fields, mainly in the grass near the water, and sometimes they can dive into the water. Mostly at night, mainly eating insects, but also eating some snails, snails, shrimps, small fish and so on. Most of the insects they eat are agricultural pests.

When it gets cold in late autumn, frogs hibernate at the bottom of the water or in caves, and then return to the water to breed when the weather gets warmer the next spring.

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