#3 Las serpientes de cascabel son extremadamente rápidas y variables al atacar: Cinemática tridimensional de alta velocidad

--534647-- — Sat, 14 Jan 2017 18:00:11 +0000

Las condiciones en las que se ha realizado el experimento son más favorables para la serpiente ya que los mecanismos de detección y visión de uno y otro animal son completamente diferentes.
High-Speed Video Captures Amazing Viper Strike in the Wild
www.livescience.com/57489-high-speed-video-viper-strike.html
www.livescience.com/57484-kangaroo-rat-vs-rattlesnake-video.html

Another recent laboratory study examined the defensive and predatory strikes of C. atrox, and observed maximum acceleration (878 ms−2) and velocity (5.5 ms−1) values during predatory strikes that exceeded those of our study27. This might simply be due to differences between species, differences in body size, or simply different levels of motivation between studies. We lack data for C. atrox strikes in nature, so it is unclear whether the laboratory trials represent comparable values to snakes in nature. Regardless, we argue that strikes of snakes in nature must be quantified before any definitive conclusion concerning relative performance is made. There are a number of reasons to expect higher (and more variable) performance in nature, including lack of stress, elevated motivation, natural light levels and temperature, and natural prey behavior.</b>

The predatory strikes of a sidewinder rattlesnake (Crotalus cerastes) can be avoided by kangaroo rats (Dipodomys merriami) in the normal condition and also after either of two surgical manipulations: (1) removal of the eyes, or (2) reduction of middle ear volume. When both these operations are performed, however, the kangaroo rat is struck by the rattlesnake with relative ease.Reduction of middle ear volume alone in a natural population of kangaroo rats resulted in a high loss of animals with reduced middle ear volume; most of them disappeared from the population during the dark phase of the moon. It is concluded that both vision and audition play significant adaptive roles in predator avoidance. www.karger.com/Article/PDF/125441

allyouneedisbiology.wordpress.com/2016/03/06/sentidos-serpientes/

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#2 Las serpientes de cascabel son extremadamente rápidas y variables al atacar: Cinemática tridimensional de alta velocidad

Ripio — Fri, 13 Jan 2017 11:06:00 +0000

Vídeos: phys.org/news/2017-01-quantify-high-viper-nature.html

» autor: Ripio

#1 Las serpientes de cascabel son extremadamente rápidas y variables al atacar: Cinemática tridimensional de alta velocidad

Ripio — Fri, 13 Jan 2017 11:04:14 +0000

El articulo es en ingles, pero la longitud del titular me ha impedido ponerlo.

» autor: Ripio

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#3 Las serpientes de cascabel son extremadamente rápidas y variables al atacar: Cinemática tridimensional de alta velocidad

#2 Las serpientes de cascabel son extremadamente rápidas y variables al atacar: Cinemática tridimensional de alta velocidad

#1 Las serpientes de cascabel son extremadamente rápidas y variables al atacar: Cinemática tridimensional de alta velocidad