Скачать или смотреть European toad - Bufo bufo - Körtur - Froskar - Vatnadýr

Common Toad - Bufo bufo - European toad - Hnúðkarta - Körtur - Körtufroskar - Karta - Froskur - Bufo toad - Bufo froskar - Erdkröte - Körtuætt - Bufonidae - Amphibia - Froskdýr - Vatnafroskar - Enskir froskar - This is an amphibian found throughout most of Europe (with the exception of Ireland, Iceland, and some Mediterranean islands) - Fann þennan frosk hoppandi í skóginum - Kerlingar eru stærri en karlar. Bæði kyn hafa vörtur á húðinni og eru kallaðir Körtur á íslensku. Borðar alskonar skordýr og snigla sem hann grípur með slímugri tungunni sem skordýrin festast við. Þessir froskar geta orðið 40 ára gamlir. alið er að hnúðkartan (Bufo bufo) lifi í 10-12 ár í náttúrunni en hún getur orðið yfir 30 ára gömul í haldi manna. The toad is an inconspicuous animal as it usually lies hidden during the day. It becomes active at dusk and spends the night hunting for the invertebrates on which it feeds. It moves with a slow, ungainly walk or short jumps, and has greyish-brown skin covered with wart-like lumps. Warty Skin. Distinct bulges on back of head, known as the parotoid glands. Tends to walk not jump. Covered in obvious warts. Þessir froskar eru mest á ferðinni eftir sólsetur til að afla sér ætis. Reptiles and Amphibians.

Although toads are usually solitary animals, in the breeding season, large numbers of toads converge on certain breeding ponds, where the males compete to mate with the females. Eggs are laid in gelatinous strings in the water and later hatch out into tadpoles. After several months of growth and development, these sprout limbs and undergo metamorphosis into tiny toads. The juveniles emerge from the water and remain largely terrestrial for the rest of their lives. As a tadpole matures, it most commonly metamorphosizes by gradually growing limbs (usually the back legs first, followed by the front legs) and then (most commonly in the case of frogs) outwardly absorbing its tail by apoptosis. Lungs develop around the time of leg development, and tadpoles late in development will often be found near the surface of the water, where they breathe air. During the final stages of external metamorphosis, the tadpole's mouth changes from a small, enclosed mouth at the front of the head to a large mouth the same width as the head. The intestines shorten to accommodate the new diet. Most tadpoles are herbivorous, subsisting on algae and plants. Some species are omnivorous, eating detritus and, when available, smaller tadpoles. See more: https://en.wikipedia.org/wiki/Tadpole

Það er tiltölulega erfitt að greina aldur froska og annarra froskdýra. Yfirleitt telja menn hringi sem myndast í beinvef þeirra, svipað og hjá trjám. Takmarkaðar upplýsingar finnast um það hversu gamlir froskar verða í náttúrunni en eins og gildir um mörg önnur dýr þá ná villtir froskar ekki eins háum aldri og froskar í haldi manna. Lesa meira: https://www.visindavefur.is/svar.php?...

Froskar eru til í flestum löndum heims og eru til nokkur þúsund tegundir. Fjölbreytnin er meiri því sem sunnar dregur en talsvert er til af froskum í Evrópu. Þótt Ísland sé ekki með froska í náttúrunni þá eru þeir samt vinsæl gæludýr og fást hérlendis nokkrar tegundir. Lesa meira: http://www.fiskabur.is/myndir_vefur/G...

Why would you “lick a toad”? Hallucinations are produced by bufotenine, the substance in the skin secretions of Bufo (Bufo vulgaris, Bufo marinus) toads. Bufotenine and many other natural toxins have been used for years for hallucinogenic effects. See more: https://www.sciencedirect.com/topics/...