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منذ 9 ساعات نشر في ٢٠٢٦/٠٧/١١ م

Imam Ali (PBUH) said: Happy is he who has not great expectations and wishes (in his life) and tries to make the most of his remaining life-time.

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Jawad

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منذ 10 ساعات نشر في ٢٠٢٦/٠٧/١١ م

A correlation exists between the toxicity of Californian salamander species and diurnal habits: relatively harmless species like the California slender salamander (Batrachoseps attenuatus) are nocturnal and are eaten by snakes, while the California newt has many large poison glands in its skin, is diurnal, and is avoided by snakes.

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Jawad

Learning English

منذ 1 أيام نشر في ٢٠٢٦/٠٧/١٠ م

In California, the palatable yellow-eyed salamander (Ensatina eschscholtzii) closely resembles the toxic California newt (Taricha torosa) and the rough-skinned newt (Taricha granulosa), whereas in other parts of its range, it is cryptically colored.

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Jawad

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منذ 2 أيام نشر في ٢٠٢٦/٠٧/٠٩ م

the eastern newt is avoided by birds and snakes, and can survive for up to 30 minutes after being swallowed (later being regurgitated).
The red salamander (Pseudotriton ruber) is a palatable species with a similar coloring to the red eft. Predators that previously fed on it have been shown to avoid it after encountering red efts, an example of Batesian mimicry.

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منذ 3 أيام نشر في ٢٠٢٦/٠٧/٠٩ م

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منذ 4 أيام نشر في ٢٠٢٦/٠٧/٠٨ م

Imam Ali (PBUH) said: There is nothing worthier than gold than what remains of a true believers life.

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كرار حيدر علي

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منذ 5 أيام نشر في ٢٠٢٦/٠٧/٠٧ م

The holy Prophet (peace be upon him and his progeny) told Abu Dharr: Take advantage of five opportunities before five other things: Your youth before your senescence, your health before your illness, your wealth before your poverty, your leisure before your haste, and your life before your death.

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منذ 6 أيام نشر في ٢٠٢٦/٠٧/٠٦ م

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Jawad

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٧/٠٤ م

Although many salamanders have cryptic colors so as to be unnoticeable, others signal their toxicity by their vivid coloring. Yellow, orange, and red are the colors generally used, often with black for greater contrast. Sometimes, the animal postures if attacked, revealing a flash of warning hue on its underside.

The red eft, the brightly colored terrestrial juvenile form of the eastern newt (Notophthalmus viridescens), is highly poisonous.

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كرار حيدر علي

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٧/٠٤ م

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Jawad

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٧/٠٣ م

The Iberian ribbed newt (Pleurodeles waltl) has another method of deterring aggressors. Its skin exudes a poisonous, viscous fluid and at the same time, the newt rotates its sharply pointed ribs through an angle between 27 and 92°, and adopts an inflated posture.

This action causes the ribs to puncture the body wall, each rib protruding through an orange wart arranged in a lateral row.
When the danger has passed, the ribs retract and the skin heals.

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Jawad

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٧/٠٢ م

Skin secretions of the tiger salamander (Ambystoma tigrinum) fed to rats have been shown to produce aversion to the flavor, and the rats avoided the presentational medium when it was offered to them again.

The fire salamander (Salamandra salamandra) has a ridge of large granular glands down its spine which are able to squirt a fine jet of toxic fluid at its attacker. By angling its body appropriately, it can accurately direct the spray for a distance of up to 80 cm (30 in).

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