Common midwife toad

This toad lives in many lands.

It can be grey or brown. It has big eyes. The skin is mostly smooth. Some parts have bumps.

The dad carries the eggs. He wraps them on his legs. He stays in damp places. This keeps the eggs wet. He swims to keep them safe. Soon, the eggs hatch.

The babies look like tiny tadpoles. They grow and change into toads.

The common midwife toad lives in many parts of Europe.

These toads can be grey, olive, or brown. They often have spots on their skin. Their eyes are large with vertical slits.

This toad has a very special way of being a dad. In the spring, a female lays eggs in jelly strings. The male then wraps these eggs around his back legs. He can carry up to 150 eggs at once. He carries them for three to eight weeks. To keep them safe, he stays in damp places. He might even swim to keep them wet. He can also use his skin to protect the eggs.

When it is time, he goes to calm water. The eggs hatch into tadpoles. These tadpoles grow and develop limbs. They lose their tails through metamorphosis. This is the way they change into young toads. They eat insects and other small creatures to grow.

The common midwife toad is a special kind of amphibian.

This toad belongs to the Alytidae family. It lives in many parts of Europe. You can find them in France, Belgium, and Germany. They also live in the Netherlands and Switzerland. Some live in Portugal and Spain. In the United Kingdom, they are an introduced species. These toads like many places to live. They stay in forests, near rivers, or even in urban gardens.

This toad has a very interesting way of raising babies. In the spring or summer, a female finds a male to mate. The female lays a mass of eggs in strings of jelly. The male then wraps these egg strings around his back legs. This is why he is called a midwife toad. He can carry up to 150 eggs at once. He might even carry three different groups of eggs at the same time. He carries them for three to eight weeks until they hatch.

Being a dad is a big job for the male. He must keep the eggs safe and moist. He stays in damp places during the day. If the eggs look dry, he will go for a swim. He can even use his skin to protect the eggs from infection. When the eggs are ready, he finds calm water. This could be a pond, a ditch, or even a flowerpot saucer. The eggs hatch into tadpoles. These tadpoles grow and change into young toads through metamorphosis.

There are many different types of this toad. Scientists call these different types subspecies. There are four subspecies of the common midwife toad. One subspecies, A. o. obstetricans, has the largest home range. It spreads from the Iberian Peninsula up into the rest of Europe. The other three subspecies live only in the Iberian Peninsula. These groups formed during the Plio-Pleistocene climatic fluctuations. This was a time of changing weather in the past.

If you saw a midwife toad, you might notice its shape. It is usually broad and stocky. The females are generally larger than the males. Their skin is mostly smooth but has some small warts. Some warts are large and reddish or yellow. Their color can change from grey to olive or brown. They have large heads and big eyes. The pupils in their eyes look like vertical slits. They eat insects and other small creatures to stay healthy.

The common midwife toad, known scientifically as Alytes obstetricans, is a unique species of amphibian. It belongs to the Alytidae family. This toad is famous for a very specific way of caring for its young. Unlike many other frogs, the male takes on the primary role of protecting the eggs. This unusual behavior makes the species a fascinating subject for biologists. It lives in various habitats across Europe, ranging from temperate forests to urban gardens.

To understand how these toads reproduce, one must look at the complex steps taken by the male. During the spring or summer, a female seeks out a mate. Females often prefer larger males because of a fitness preference. Once they mate, the female ejects a mass of eggs. These eggs are held together in long strings of jelly. The male then uses his hands to pull and pummel the egg mass. He carefully teases the strings out so he can wrap them around his back legs and thighs.

A male's dedication to his offspring is quite remarkable. He can carry up to 150 eggs at a single time. He is even capable of carrying up to three different clutches of eggs simultaneously. He protects these eggs for a period of three to eight weeks. To keep them healthy, he stays in damp locations during the day. If the eggs risk drying out, he will go for a swim to provide moisture. He may also secrete a substance through his skin to protect the eggs from infection.

When the eggs are finally ready to hatch, the male moves to a calm water source. This could be a river, a spring, or even a small village pond. Interestingly, they may use very small water bodies like flowerpot saucers in gardens. Once they hatch, the eggs become tadpoles. These tadpoles feed and grow for several months. They eventually undergo metamorphosis, which is the process of changing from a tadpole into a juvenile toad.

There are several different subspecies of the common midwife toad. The most widespread is A. o. obstetricans, which lives from the Iberian Peninsula up into the rest of its range. The other three subspecies, A. o. almogavarii, A. o. boscai, and A. o. pertinax, are local to the Iberian Peninsula. These groups formed during the Plio-Pleistocene climatic fluctuations, which were periods of changing climates. Scientists have recently noted that A. o. almogavarii may be moving toward becoming its own independent species, Alytes almogavarii. This is due to a lack of gene flow between the groups.

Physically, the common midwife toad has a very distinct appearance. They are generally broad and stocky in shape. Females are usually larger than the males. Their skin is mostly smooth, though it has some small warts and granules. You might see a row of large warts down each side of their body. These large warts are often reddish or yellow in color. Their eyes are large with pupils that look like vertical slits. Their color can vary between grey, olive, or brown, sometimes with greenish or brown spots.

The history of this toad also includes a famous role in the sociology of science. In 1971, Arthur Koestler wrote a book titled The Case of the Midwife Toad. The book discussed Paul Kammerer, who claimed to have shown Lamarckian inheritance using this species. While the science has evolved, the toad remains a key part of discussions regarding scientific paradigms. Today, the species faces threats from habitat loss. In the United Kingdom, where they are an introduced species, researchers have noted limb deformities in some populations. These deformities are likely linked to small founder population sizes.

In the wider ecosystem, the common midwife toad plays a specific role as a predator. They primarily feed on insects and other arthropods. They may also eat carrion, which is decaying organic matter. By eating these creatures, they help manage the populations of insects in their environment. Whether they are in a forest or a garden, they are an active part of the natural world. They are most active at dusk and throughout the night, hiding in damp crevices or under logs during the day.