|
Post by Ceratodromeus on Nov 22, 2016 23:05:25 GMT 5
Eels & octopi
|
|
|
Post by Ceratodromeus on Nov 23, 2016 10:42:36 GMT 5
little crocodile v stork
|
|
|
Post by Ceratodromeus on Nov 28, 2016 9:37:42 GMT 5
" Green Iguanas are the largest lizards in Central America, reaching a total length of 2 m and a weight of 4 kg (Savage, 2002). These herbivorous and frugivorous lizards are ecologically plastic and fairly abundant in their habitats, and their large size and active foraging behavior make them easy to locate by predators. Many mammal, bird, and reptile species prey on the eggs and different age classes of I. iguana (Greene et al., 1978), and this lizard also an important dietary component of many human communities (Savage, 2002).
On 13 December 2008, one of us (RO) witnessed a predation attempt by two Tayras, Eira barbara (Mammalia) Mustelidae), on an I. iguana at Earth University, Provincia de Limón, Costa Rica (10º12'49"N, 83º35'12"W; WGS 84), elev. 40 m. An adult male I. iguana had jumped or fallen from a tree, and quickly was pursued by two young E. barbara. The mustelids evidently were attracted by the sound of the falling animal, and chased the iguana for about 20 m until they cornered it along a creek (Fig. 1). At first, the Eira seemed puzzled as to what to do with the large reptile, but eventually one of them bit the lizard on the head and neck (Fig. 2), and soon after the other began to concentrate on the tail (Fig. 3). Excited from the chase, and perhaps stimulated by the taste (or scent) of blood, the Tayras began to make guttural noises and appeared to lose interest in their surroundings. The trio struggled for a while, partially in the water, but at a certain point the Iguana liberated itself and with a burst of speed escaped, as the young Eira appeared confused. The photographs were taken by RO ca. 10 m from the scene, and at times the Eira acknowledged his presence by exposing their teeth and growling. The episode lasted about 10 minutes. Galef et al. (1976) reported on a predation event involving an adult Tayra and a Green Iguana at Barro Colorado Island, Panama. In eastern Colombia, Tayras are known to hunt in pairs around the base of large trees, and to attack Boa constrictor of considerable size (Defler, 1980)." mesoamericanherpetology.com/uploads/3/4/7/9/34798824/othercontributions_march_2015.pdf
|
|
|
Post by Ceratodromeus on Nov 29, 2016 10:31:03 GMT 5
Grison v small tegu
|
|
|
Post by Supercommunist on Jan 26, 2017 11:56:58 GMT 5
Big dog kills baboon.
|
|
|
Post by Supercommunist on Mar 14, 2017 14:19:59 GMT 5
|
|
|
Post by An Goldish Jade on Aug 15, 2017 13:41:22 GMT 5
Moray eel vs Sea snake
|
|
|
Post by An Goldish Jade on Aug 20, 2017 10:11:23 GMT 5
|
|
|
Post by An Goldish Jade on Sept 16, 2017 10:15:21 GMT 5
|
|
|
Post by Supercommunist on Jun 8, 2020 22:22:59 GMT 5
|
|
|
Post by Infinity Blade on Jun 8, 2020 23:55:24 GMT 5
One interesting thing I've learned is that when it comes to mid-sized carnivores like the wolverine, most modern studies have been done in contexts with an impoverished large carnivore guild, sometimes even lacking large carnivores completely. With their dietary flexibility and lack of competition from larger carnivores, mid-sized carnivores like wolverines can go ahead and make attempts at hunting larger herbivores, even if most of their large ungulate intake is still from scavenging ( link->).
|
|
|
Post by Supercommunist on Jun 9, 2020 2:29:30 GMT 5
^That's interesting. Maybe part of the reason why wolverines and other predators are occasionally known to bring down herbivores that should be able to easily dislodge them then is due to the fact that they are no longer accustomed to dealing with predators.
|
|
|
Post by Supercommunist on Aug 8, 2020 14:47:08 GMT 5
|
|
|
Post by Supercommunist on Aug 26, 2020 4:36:57 GMT 5
|
|
|
Post by Supercommunist on Sept 20, 2020 8:18:43 GMT 5
|
|