The Law of Love (1910-1919)

Germany.

Audience.

A professor gives a lecture on the instincts of motherhood and the process of reproduction of various representatives of the plant and animal world.

Search for a partner.

A male toad calls a female with the sounds of his bubble.

A grasshopper - by rubbing his wings.

Snakes on a stump.

A male lizard bites a female in the heat of love.

In the water kingdom, there is a fight for a female.

A fight for a female between roosters.

A peacock stands with his tail spread.

Turkeys are walking.

Two pigeons are sitting on a branch.

In mice, the game of love reaches ecstasy.

They circle around each other.

A cat beckons a cat.

The process of combining a seed with an egg, diagram.

Fertilization.

Development of a human embryo.

In plants, insects often serve as an intermediary for fertilization

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In some animals, the union of egg and seed occurs through so-called external fertilization.

The male toad pours seed onto the female's eggs.

The female toad squeezes the eggs out of her body.

The process of fertilization in fish.

A cross between external and internal fertilization in the grasshopper.

The male crawls under the female and attaches a capsule with seed to her back body.

Fertilization occurs.

Viviparous fish have internal fertilization.

The male has a motor organ of fertilization.

The amphipod can swim for about 8 weeks, glued to the female.

All flies have external fertilization.

In the water spider, mating occurs in a dwelling woven from a web.

Often, mating in insects leads to tragedy, for example, in spiders and praying mantises.

The male praying mantis approaches the female cautiously, but as soon as fertilization occurs, the female eats him alive.

The stag beetle captures the female with its horns.

Mating in vipers lasts all day.

In birds, fertilization is internal

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A locust lays its seed on hot sand.

A worm lays its eggs in a warm, damp place.

A grape snail lays its eggs in a hole.

A moth.

A caterpillar emerges from the egg.

A moth emerges from the pupa.

Bees and wasps undergo metamorphosis in the honeycombs.

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Birds sit on nests.

Under high body temperature they hatch eggs.

Dive on eggs.

Most birds hatch eggs in a friendly pair.

Boobies hatch eggs in large colonies.

Penguins also hatch in a large colony.

Childbirth in mice.

A mouse helps a zumabi give birth.

A cat licks a newborn kitten.

People will be born in 9 months.

The belly of a pregnant woman.

A sectional diagram of the mother's belly, the fetus.

The process of birth, the exit of the fetus.

Maternal instinct sometimes leads to tragedy.

A cuckoo puts her egg in the nest of a reed warbler, and she hatches it together with her eggs, the grown cuckoo chick throws his brothers out of the nest.

The bird still feeds the cuckoo chick, although he is already significantly larger than her

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Mice that give birth to naked and helpless babies, prepare a warm nest of paper, straw.

A cat guards her kittens.

A dog, sheep, pig, horse feed their young.

A kangaroo holds a baby in a pouch on its belly.

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A monkey with cubs in a cage.

A symbol of maternal love - a woman-mother with a child.

The smallest single-celled organisms live in water silt.

Amoebas reproduce simply by cell division.

The hydra has a higher step, it reproduces by buds.

Most plants reproduce by insects.

A diagram of flower pollination by a fly

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Victoria Regia opens in the evening, when tropical bugs begin to fly.

Pollination scheme by insects.

Among animals, they are extremely rare, for example, the grape snail.

They have organs of both sexes.

Snails are connected.

Experiments by Steinach and Knud Sand showed that castrated animals can be transplanted with a male or female organ.

Example: a female guinea pig is converted into a male / photo of pigs /.

And vice versa, a female is made from a male by transplanting ovaries.

Hermaphrodites in humans.

This is a person who is a transitional stage.

Only after 11 years does he feel female traits in himself.

His genitals have male signs, and the upper part is female.

Hairy arms and legs.

He dresses like a woman, his behavior style is female.

Photo.

A man with female breasts.

A woman with a beard