Common Frog (Rana temporaria) tadpoles. All of the frogs in a pond tend to spawn roughly within a few days of each other. The female releases 1000 to 2000 eggs, the male then releases sperm. The eggs are coated in jelly, and are popularly known as 'frogspawn'. After 10-14 days, the tadpoles hatch, becoming free-swimming a few days later, and undergoing metamorphosis into adults 10-15 weeks after hatching. Tadpoles are vulnerable to predation by a range of aquatic creatures, including water beetles, newts and fish. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / Stammers, Sinclair |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property release : | Non requis |
Durée : | 10 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |