-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Where did the snake's fangs come from? |
The fangs of the Gabonese Viper (attached to the upper jaw)
.
Image source: First author A.
Palci, Flinders University
"Why snakes’ fangs have evolved so many times, while other reptiles’ fangs have rarely evolved? This has always been a mystery
.
Our research answers this question and shows that normal snake fangs can easily become'hypodermic syringes'
Of the nearly 4,000 species of snakes alive today, about 600 are considered to have "medical significance" for humans, which means that if you are bitten, you will most likely need to go to the nearest hospital for treatment
.
Fangs are modified teeth that have grooves and are larger than other teeth
.
They can be located behind or in front of the snake's mouth, and can be fixed or hinged (that is, folded back)
Types of snake venomous teeth: posterior teeth (crab-eating water snake), fixed front teeth (taipan snake), hinge front teeth (gabon viper)
.
Image source: first author A.
Types of snake venomous teeth: posterior teeth (crab-eating water snake), fixed front teeth (taipan snake), hinge front teeth (gabon viper)
"Our work also emphasizes the opportunism and utility of evolution,
" said study co-author Michael Lee of Flinders University and the Museum of South Australia.
"The wrinkles that help teeth attach to the chin are reused to help inject venom.
The first author of the article, A.
Palci, and a non-venomous snake at the Discovery Center of the Museum of South Australia
The first author of the article, A.
https://doi.
org/10.
1098/rspb.
2021.
1391 https://doi.
org/10.
1098/rspb.
2021.
1391