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| Predators and Prey NaTgeO |
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The unifying theme in all classifications of
predation is the predator lowering the
fitness of its prey, or put another way, it
reduces its prey's chances of survival,
reproduction, or both. Ways of classifying
predation surveyed here include grouping by
trophic level or diet, by specialization, and
by the nature of their interaction with prey.
A true predator is one which kills and eats
another organism. Whereas other types of
predator all harm their prey in some way,
this form results in their instant death.
Predators may hunt actively for prey, or sit
and wait for prey to approach within striking
distance, as in ambush predators. Some
predators kill large prey and dismember or
chew it prior to eating it, such as a jaguar,
while others may eat their (usually much
smaller) prey whole, as does a bottlenose
dolphin or any snake. In some cases the prey
organism may die in the mouth or digestive
system of the predator. Baleen whales, for
example, eat millions of microscopic plankton
at once, the prey being broken down well
after entering the whale. Seed predation is
another form of true predation, as seeds
represent potential organisms. Predators of
this classification need not eat prey
entirely, for example some predators cannot
digest bones, while others can. Some may
merely eat only part of an organism, as in
grazing (see below), but still consistently
cause its direct death.
Tags : Predators and Prey africa wild cats National geograpgic channel |
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Affichage : 8907
Durée : 523 s |
| Mongoose Attacking an Asian Cobra (Britannica.com) |
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Witness this viscious battle between two
mortal enemies, the mongoose and the Asian
cobra.
**************Related Links**************
Mongoose -
http://www.britannica.com/eb/article-9053361/
mongoose?source=youtube_18474
Cobra -
http://www.britannica.com/eb/article-9024546/
cobra?source=youtube_18474
Predation -
http://www.britannica.com/eb/article-70616/co
mmunity-ecology?source=youtube_18474
FREE NEWSLETTERS -
http://mailinglist.britannica.com/settings/
Tags : Britannica Animals Nature Mongoose Cobra Snake Predator Prey Education Reference |
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Affichage : 1700842
Durée : 52 s |
| Dance your PhD- Christin Murphy |
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Hydrodynamic trail detection in marine
organisms
Hydrodynamic trails are generated when
objects move though a fluid medium. These
vortices provide robust, persistent stimuli
that can convey spatial and temporal
information. Facial vibrissae, or whiskers,
in phocid seals, and antennae in lobsters
contain receptors that detect waterborne
vibrations and hydrodynamic trails. This is
critical for prey capture and predator
avoidance, allowing hunting and navigation in
dark or murky waters.
In this piece, there is interplay between the
detection of hydrodynamic trails by organisms
at different trophic levels in the marine
environment.
The movement of the lobsters generates
hydrodynamic signals with spinning vortex
structures, conveying information about their
locomotion and spatial location. These
signals propagate through the fluid medium
and are detected by the whiskers of a nearby
seal. The receptors on the whiskers of this
animal enable it to track and localize its
potential prey. However, the antennae of the
lobsters also possess hydrodynamic receptors.
The lobsters sense the predators approach
and attempt to escape.
Once a shark begins swimming overhead, its
hydrodynamic trails are sensed by all of the
nearby organisms, signaling the presence of a
large predator. Detection of the sharks
hydrodynamic signals allows the smaller
organisms to seek shelter and avoid
predation. The hydrodynamic wake extending
behind the shark is visualized in this dance
by the trailing movement of the silks.
The fire and illuminated hoops in the next
segment represent the availability of
hydrodynamic signals in low light conditions.
In environments where visual information is
limited, such as dark, deep and murky water,
hydrodynamic signals become the predominant
stimuli.
Tags : Dance hoop dance hoola hula PhD Hydrodynamic Shark Seals Lobsters Acrobatics Beach Boys Fire |
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Affichage : 13792
Durée : 335 s |
| Alien Vs Predator 2: Full S.P Demo - Predator Mission Part 1 |
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This video shows part 1 of the full predator
mission in the Alien vs Predator 2 single
player demo.
I played it on easy as it was hard to record
and play at the same time without getting
kill in the progress.
Sorry if I took my time to complete the
mission as I tried to show all the guns and
abilities of the predator.
Demo website(includes all three sides):
http://www.download.com/Aliens-vs-Predator-2-
single-player-demo/3000-7563_4-8595766.html
http://aliensvspredator2.filefront.com/file/A
liens_vs_Predator_2_Single_Player_Demo_All_Sp
ecies;1171#Download
http://www.fileradar.net/files/view/Alien-Vs-
Predator-2_Alien-Vs-Predator-2-Demo/544
My other AvP2 demo videos:
http://www.youtube.com/watch?v=vL8YfqyU4Fo
(Marine- small demo)
http://www.youtube.com/watch?v=vwHlRYLp3yE
(Marine Part 1)
http://www.youtube.com/watch?v=oXZFRyWYVZs
(Marine Part 2)
http://www.youtube.com/watch?v=AVdvnP5XgbA
(Alien)
http://www.youtube.com/watch?v=gDyyXRLEces
(Predator part 2)
Tags : alien vs predator avp2 single player demo horror game first person shooter |
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Affichage : 15348
Durée : 269 s |
| 4 Insurgents Getting Killed by Apache Gunfire |
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IRAQ war 2008 clip US army in iraq insurgency
attacks clip guerrilla warfare insurgents
wasted gunship action hellfire missile takes
out terrorists apache kills 30mm terrorists
al qaeda insurgents cut up lit up cannon UAV
predator airstrike insurgents taken out AH 64
takes out insurgents killed by us military
marines marine corps warfare firefight engage
clash ac-130 50 cal. 3rd Light Armored
Reconnaissance Battalion recon echo 1st plt
2/7 2/2 boeing 101st airborne 3rd company
AH-64 apache 2000 pound jdam us military
multiple air strikes apache attack helicopter
gunship gun run afghanistan taliban nato
soldiers kabul marine sniper .50 cal fighting
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soldiers operation militants ambush takes out
insurgent vehicle with hellfire missile in
iraq AH-64 engage insurgent car with hellfire
missile in vicinity hawijah guns gunfight
gunfire weapons bullets ammunition sniper
round rifle caliber m6 machine gun US air
force predator UAV apache airtrikes airstrike
in iraq night attack air strike on insurgents
american military insurgents meet their
virgins 30mm & hellfire killed by marine
marines kill insurgents marines kicking
insurgent ass apache attack f 16 strikes
insurgents ah 64 engage insurgents engaged al
qaeda marine corps 500 pound jdam dropped
USMC boot camp echo operation 1st battalion
3rd regiment 30th combat team brigade rangers
infantry division foot patrol bravo company
mission 500lb JDAM kills IRAQ 2008 clip US
american air force military northern alliance
insurgent getting owned by his own RPG mortar
backfires on insurgents face stupid dumbdass
terrorist nearly kills everyone around him
with an ak-47 stupid insurgent kills everyone
around him firing rpg haji dead special
forces shot down apache helicopter hellfire
us navy seals british sas special forces
green berets airborne elite swat shooting rpg
american soldiers boot camp semper fi oorah
2nd regime 1st platoon kilo company 31st
airborne us military army 50 cal. A-10
insurgents death insurgents dead marines kill
terrorists air strike on insurgents terrorist
A 10 semper fidelis resistance jihad
mujahideen iraqi resistance juba sniper shot
guns bullets rounds gunfire gunshots gunfight
firefight fighter c-4 vbied explosion
insurgent roadside bomb carbomb vbied ied
explosive mines suicide attacks usa soldier
dead afghanistan taliban m1a1 abrams tank A10
helicopter pakistan iran nuclear program
weapons nuke america ambusher Iraq War Jihad
Mujahideen Firefight Ambush IED VBIED AlQaeda
ISI IAI Islamic state of iraq IRAQ IED Bush
AMERICAN Tank Resistance USA guerrilla
warfare Iraq USMC ambush ied vbied attack
alqaeda terrorist isi iai jami jaami sunni
wahabi salafi jihad mujahideen best attacks
intahar saldırıları IRAK mine bombs tank
big bang granede explosives jihad and best
jihad resistance death us marines 1st
battallion echo operation thunder storm
desert storm 500 Pound Bomb JDAM Dropped
Insurgent Sniper Position Iraq Insurgent
Sniper Killed While Trying to Escape haji War
Sniper US Military F16 smart bomb Insurgent
owned killed UAV Predator drone aircraft
terrorist missile jet oif Insurgents Getting
Wasted Compilation apache insurgent deaths
iraq insurgents rpg hellfire uav predator IED
30mm ogrish x-ray dog war military oif battle
US Marines Engage Insurgents Planting IED in
jdam US Marines USMC Airstrike Bomb Iraq
Combat Battle Firefight War Military OIF
insurgents get owned wasted terrorists pwnd
Attack Helicopters kill insurgents in Baghdad
Apache Attack Helicopter Destroys Insurgents
Army rpg Baghdad alqaeda Explosion War
military combat terrorist insurgents
firefight battle operation freedom bombing
Two Apaches take out truck full of insurgents
iraq war AH-64 apache helicopter gun tape
flir camera 30mm hellfire missile rockets
insurgent insurgency truck Apache Takes Out
Insurgents 30mm iraq Warning mature graphic
Iraq us army battle shoot rocket missile
airstrike hellfire 30mm strafe airsupport
blast explosion bomb kill dead shot Mortar
Team ELIMINATED Mortar group Insurgents
killed dead hajis Explosion Bomb Apache Gun
Tape Compilation iraq war AH-64 apache
helicopter gun tape compilation insurgents
30mm hellfire missile rockets attack
engagement Insurgents get smoked. Apache gun
camera footage Iraq Insurgents ambush
Military troops USA haji Marines Army Navy
Air-Force insurgent killed owned dead apache
gun tape Insurgents Die Gracefully taliban
insurgents die pain military usa resistance
jihad roadside bomb terrorist bombing al
qaeda juba sniper firefight Truck Picking Up
Insurgents Gets Blown Apart Apache army
Insurgents terroristen terrorist Afghanistan
Iraq terror special forces marines irak war
footage US Army Apache Killing 7 Insurgents
US Army OH58 Kiowa Iraq Predator Insurgents
lit up killed dead hajis wasted oorah UAV
Airstrike Combat Military War OIF iraq war
attack aircraft OIF Operation Iraqi Freedom
explosion terror terrorists military Army
Marines
Tags : Army Iraq Baghdad alqaeda Explosion War military combat terrorist insurgents firefight battle operation freedom bombing |
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Affichage : 0
Durée : 228 s |
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