přehled žab
Šípové žáby - smrtelně nebezpečná kráska
Tělo mnoha obojživelníků obsahuje jed, ale jen málo z nich je tak nebezpečných jako stromové žáby ze Střední a Jižní Ameriky. Tamější Indiáni používají jed k napouštění svých šípů.
Většina stromových žab má výraznou barvu - nejčastěji červenou, žlutou nebo modrou. Jasné barvy jsou varováním pro ty, co by si na žábě chtěli pochutnat. Asi nejjedovatější ze všech je druh Phyllobates aurotaenia žijící v Kolumbii. Pouhé 0.0003g jejího jedu stačí zabít člověka.
Některé druhy se vyznačují pro obojživelníky neobvyklým chováním - dvojice si totiž před pářením spolu hraje. Dvě až tři hodiny skáčou jedna za druhou, než samička naklade vajíčka a sameček je oplodní. Samec pak nosí vajíčka a později i mláďata na zádech, doku nevyrostou.
Všechny druhy jedovaté nejsou. Z asi 170 druhů této čeledi patří plná stovka nenápadných, hnědě zbarvených žabek do rodu Colosthetus. Tyto asi čtyři centimetry velké žabky obývají mimo jiné břehy malých bystřin a potůčků. Tráví mnoho času ve vodě a mají proto na rozdíl od ostatních pralesniček dobře vyvinuté plovací blány. Nevylučují žádný kožní toxin a nejsou tedy vůbec jedovaté. Spoléhají na své nenápadné zbarvení, které jim pomáhá uniknout pozornosti nepřátel. Ani v případě objevení však nejsou úplně bezbranné. Velmi rychle totiž skáčou a hbitě vyhledávají sebemenší úkryty v zemi, pod kameny nebo pod kořeny stromů.
Žába druhu Phyllobates terribilis, ne větší než tři centimetry, má dostatek jedu k zabití 20000 myší nebo osmi lidí. V ohrožení života totiž tyto žabky ve snaze o záchranu vylučují více svého jedu než obvykle.
V kožním sekretu pralesniček bylo nalezeno více než sto různých chemických látek, které patří do skupiny takzvaných lipofilních alkaloidů. Jsou to poměrně složité organické látky, jejichž základem je většinou šestičetná cyklická molekula obsahující pět atomů uhlíku a jeden atom dusíku. Tyto látky můžeme rozdělit do několika skupin. Ne každá pralesnička však umí vyrábět všechny typy těchto toxinů.
Přítomnost či nepřítomnost jednotlivých složek jedu slouží dnes jako klíč k rozdělení pralesniček do čtyř zoologických rodů. Takzvané histricotoxiny chybí u rodu Minyobates, zatímco vysoce účinné batrachotoxiny má jen rod Phyllobates. Rod Epipedobates postrádá histricotoxiny a kromě toho ještě skupinu toxinů zvaných 3,5-disubstituované indolyziny. Obě posledně jmenované skupiny jsou přítomné u rodu Dendrobates.
Komentáře
Přehled komentářů
https://dzheneriki-viagra.ru
BTC PROFIT SEARCH AND MINING PHRASES
(LamaRon, 15. 6. 2024 5:09)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
BITCOIN LOTTERY - SOFTWARE FREE
(LamaRon, 14. 6. 2024 20:30)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
of ebony teens
(DraloCrify, 14. 6. 2024 14:48)
teens ass com
https://aberinnovation.com/?URL=https://tubesweet.com/
https://buket777.ru:443/bitrix/redirect.php?goto=https://tubesweet.com/
https://us.ballop.co.kr/member/login.html?returnUrl=https://tubesweet.com/
https://office.by/bitrix/rk.php?id=17&site_id=s1&event1=banner&event2=click&goto=https://tubesweet.com/
Exploring the Fascinating of Dating: Connections, Nurturing, and Revelation
(CyharlesOpils, 14. 6. 2024 10:40)
Dating is a go abroad that encompasses the spell of good samaritan ally, offensive excrescence, and overpowering discoveries. It is a take care of to which individuals explore impractical possibilities, getting to recall each other on a deeper level. Dating allows people to part experiences, exchange ideas, and design expressive connections.
https://zeenite.com
In the realm of dating, whole encounters a diverse string of emotions. There's the exhilaration of meeting someone new, the foreknowledge of a beginning fixture, and the titillation of discovering stock interests and shared values. It is a continually of vulnerability and self-discovery as individuals obtainable themselves up to the possibility of rapture and companionship.
https://teen-lesbian-tube.com
Effectual communication lies at the will of dating, facilitating understanding and consistency between two people. It involves active listening, honest symbol, and empathy, creating a space representing veritable dialogue. Including communication, individuals can explore their compatibility, transfer thoughts and dreams, and raise a foundation of trust.
Men Dating Men: Celebrating Adulation and Pull
(Albertphope, 14. 6. 2024 10:22)
Men dating men participation tenderness, consistency, and the beauty of relationships in their own unexcelled way.
https://analxxx.one
In a life that embraces distinctiveness and inclusivity, same-sex relationships have organize their place. Men who obsolete men direct the joys and challenges of structure meaningful connections based on authenticity and reciprocal understanding. They celebrate charity while overcoming societal expectations, stereotypes, and discrimination.
https://teen-lesbian-tube.com
Communication and emotional intimacy pleasure a essential task in their relationships, fostering trust and deepening their bond. As people progresses close to conformity, it is important to recognize and particular the angel shared between men dating men, embracing their unique experiences and contributions to the tapestry of anthropoid connections.
BITCOIN LOTTERY - SOFTWARE FREE
(LamaRon, 14. 6. 2024 7:53)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
BITCOIN CRACKING SOFTWARE
(LamaRon, 14. 6. 2024 4:44)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
BTC PROFIT SEARCH AND MINING PHRASES
(LamaRon, 13. 6. 2024 23:55)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
Weather is outragous
(Frank#rizzo[Kfyzeiuqujbpygze,2,5], 13. 6. 2024 15:45)
best Inmate Text app
https://contactmeasap.com/blog/federal-inmate-photo-printing-2/
BITCOIN LOTTERY - SOFTWARE FREE
(LamaRon, 12. 6. 2024 23:39)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
Cialis, Viagra, Levitra - Trial ED Packb buy, discount!
(PillsAcast, 12. 6. 2024 23:08)
Erectile dysfunction treatments available online from TruePills.
Discreet, next day delivery and lowest price guarantee.
Viagra is a well-known, branded and common erectile dysfunction (ED) treatment for men.
It's available through our Online TruePills service.
Trial ED Pack consists of the following ED drugs:
Viagra Active Ingredient: Sildenafil 100mg 5 pills
Cialis 20mg 5 pills
Levitra 20mg 5 pills
https://true-pill.top/
Kliane
Finascar
Abis
Deponit
Cialis, Viagra, Levitra - Trial ED Packb buy, discount!
(PillsAcast, 12. 6. 2024 23:06)
Erectile dysfunction treatments available online from TruePills.
Discreet, next day delivery and lowest price guarantee.
Viagra is a well-known, branded and common erectile dysfunction (ED) treatment for men.
It's available through our Online TruePills service.
Trial ED Pack consists of the following ED drugs:
Viagra Active Ingredient: Sildenafil 100mg 5 pills
Cialis 20mg 5 pills
Levitra 20mg 5 pills
https://true-pill.top/
Kliane
Finascar
Abis
Deponit
Cialis, Viagra, Levitra - Trial ED Packb buy, discount!
(PillsAcast, 12. 6. 2024 23:05)
Erectile dysfunction treatments available online from TruePills.
Discreet, next day delivery and lowest price guarantee.
Viagra is a well-known, branded and common erectile dysfunction (ED) treatment for men.
It's available through our Online TruePills service.
Trial ED Pack consists of the following ED drugs:
Viagra Active Ingredient: Sildenafil 100mg 5 pills
Cialis 20mg 5 pills
Levitra 20mg 5 pills
https://true-pill.top/
Kliane
Finascar
Abis
Deponit
Cialis, Viagra, Levitra - Trial ED Packb buy, discount!
(PillsAcast, 12. 6. 2024 23:04)
Erectile dysfunction treatments available online from TruePills.
Discreet, next day delivery and lowest price guarantee.
Viagra is a well-known, branded and common erectile dysfunction (ED) treatment for men.
It's available through our Online TruePills service.
Trial ED Pack consists of the following ED drugs:
Viagra Active Ingredient: Sildenafil 100mg 5 pills
Cialis 20mg 5 pills
Levitra 20mg 5 pills
https://true-pill.top/
Kliane
Finascar
Abis
Deponit
Cialis, Viagra, Levitra - Trial ED Packb buy, discount!
(PillsAcast, 12. 6. 2024 23:03)
Erectile dysfunction treatments available online from TruePills.
Discreet, next day delivery and lowest price guarantee.
Viagra is a well-known, branded and common erectile dysfunction (ED) treatment for men.
It's available through our Online TruePills service.
Trial ED Pack consists of the following ED drugs:
Viagra Active Ingredient: Sildenafil 100mg 5 pills
Cialis 20mg 5 pills
Levitra 20mg 5 pills
https://true-pill.top/
Kliane
Finascar
Abis
Deponit
SEARCHING FOR LOST BITCOIN WALLETS
(LamaRon, 12. 6. 2024 20:22)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
Где Купить Кокаин в Киеве? САЙТ - KOKS.TOP Как Купить Кокаин в Киеве САЙТ - KOKS.TOP
(Derrickywerry, 12. 6. 2024 17:36)
Купить Кокаин в Киеве? Цена на Кокаин САЙТ - https://koks.top/
Доставка в руки - https://koks.top/
Premium databases for Xrumer 23 ai Strong and GSA Search Engine Ranker
(AnthonyPitly, 12. 6. 2024 16:15)We offer premium databases for Xrumer 23 ai Strong and GSA Search Engine Ranker. Detailed information can be found here https://dseo24.monster
BITCOIN MONEY SEARCH SOFTWARE
(LamaRon, 12. 6. 2024 12:12)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100
https://dzheneriki-viagra.ru
(MichealLiX, 15. 6. 2024 12:56)