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منذ 11 ساعة نشر في ٢٠٢٦/٠٥/٢٨ م

Fully terrestrial species such as the fire salamander have a flatter lens which can focus over a much wider range of distances.
To find their prey, salamanders use trichromatic color vision extending into the ultraviolet range, based on three photoreceptor types that are maximally sensitive around 450, 500, and 570 nm.
The larvae, and the adults of some highly aquatic species, also have a lateral line organ, similar to that of fish, which can detect changes in water pressure.

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منذ 1 أيام نشر في ٢٠٢٦/٠٥/٢٧ م

The eyes of most salamanders are adapted primarily for vision at night. In some permanently aquatic species, they are reduced in size and have a simplified retinal structure, and in cave dwellers such as the Georgia blind salamander, they are absent or covered with a layer of skin. In amphibious species, the eyes are a compromise and are nearsighted in air and farsighted in water.

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منذ 1 أيام نشر في ٢٠٢٦/٠٥/٢٧ م

Imam al-Sadiq (PBUH) said: He who has even a little arrogance in his heart will not be allowed to enter Heaven.

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منذ 3 أيام نشر في ٢٠٢٦/٠٥/٢٦ م

Imam Ali (PBUH) said: You should avoid self-admiration, having reliance upon what appears good in yourself, and love of exaggerated praise because this is one of the most reliable opportunities for Satan.

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منذ 3 أيام نشر في ٢٠٢٦/٠٥/٢٥ م

In plethodonts, the sensory epithelium of the vomeronasal organs extends to the nasolabial grooves, which stretch from the nostrils to the corners of the mouth. These extended areas seem to be associated with the identification of prey items, the recognition of conspecifics, and the identification of individuals.

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منذ 4 أيام نشر في ٢٠٢٦/٠٥/٢٤ م

Imam Ali (PBUH) said: Two things cause people to be destroyed (and lead unto Hell): fear of poverty, and seeking superiority through pride.

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منذ 5 أيام نشر في ٢٠٢٦/٠٥/٢٣ م

Olfaction in salamanders plays a role in territory maintenance, the recognition of predators, and courtship rituals, but is probably secondary to sight during prey selection and feeding. Salamanders have two types of sensory areas that respond to the chemistry of the environment. Olfactory epithelium in the nasal cavity picks up airborne and aquatic odors, while adjoining vomeronasal organs detect nonvolatile chemical cues, such as tastes in the mouth.

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منذ 6 أيام نشر في ٢٠٢٦/٠٥/٢٣ م

Imam Ali (PBUH) said: He who considers himself a great one (self-conceited), is naught with Allah.

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٥/٢٠ م

Mature adults of some salamander species have "nuptial" glandular tissue in their cloacae, at the base of their tails, on their heads or under their chins. Some females release chemical substances, possibly from the ventral cloacal gland, to attract males, but males do not seem to use pheromones for this purpose.

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٥/٢٠ م

Imam Ali (PBUH) said: Do not become obstinate (and do not strictly follow your own ideas), because such a one will meet destruction.

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٥/١٩ م

Some salamander toxins are particularly potent. For example, the rough-skinned newt (Taricha granulosa) produces the neurotoxin tetrodotoxin, the most toxic nonprotein substance known. Handling the newts does no harm, but ingestion of even a minute fragment of skin is deadly. In feeding trials, fish, frogs, reptiles, birds, and mammals were all found to be susceptible.

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منذ 1 أسابيع نشر في ٢٠٢٦/٠٥/١٩ م

Imam Ali (PBUH) said: How many wretched people there are whose days are being numbered but yet they are laboriously seeking wealth.

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