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Spotted Hyena (Crocuta crocuta)

United States Styx38 Offline
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I have seen many misconceptions of Hyenas being scavengers.

While it is true that they are known for usurping kills, they still prefer to hunt prey.

"During period II, spotted hyaenas were observed to feed on 124 carcasses for which the cause of death could be determined. Of these, 69% (n = 85) were killed by hyaenas, and 31% (n = 39) were scavenged in the broad sense (both kleptoparasitized carcasses and those scavenged in the strict sense). During period I, hyaenas were observed feeding on 262 carcasses of which 93% (n = 244) were killed by hyaenas and 7% (n = 18) were scavenged from other predators or died from causes other than predation (Kruuk 1972)."

That being said, they do scavenge depending on the relative number of Lion kills.

"The proportion of carcasses scavenged and acquired by kleptoparasitizing other predators increased from period I to II. This was facilitated by an increase in the relative number of lion kills available to hyaenas during the same period."

Höner, Oliver P., et al. "The response of spotted hyaenas to long‐term changes in prey populations: functional response and interspecific kleptoparasitism." Journal of Animal Ecology 71.2 (2002): 236-246.



The statistics of Hyena kill rates vs. scavenging rates are similar here.

"The spotted hyena is still widely regarded as a scavenger that picks up leftovers at the kills of other sympatric carnivores (e.g., cheetah, leopard, or lion) or feeds on carrion. However, this is incorrect. Although spotted hyenas do scavenge opportunistically, they are efficient hunters, and directly kill 60%–95% of the food they eat (Holekamp and Dloniak, 2010) (Fig. 1)."

source: Smith, Jennifer E., and Kay E. Holekamp. "Spotted hyenas." Michigan State University: East Lansing, MI (2010).
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BorneanTiger Offline
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Hyenas against the hippo & rhino!






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lionuk Offline
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Hyena Swazi knows when there is a chance for a free meal. The Wild Dog Pack is on the hunt so Swazi not only follows but at times runs with them!! The dogs try to chase him off but Swazi continues to stay very close! The dogs keep running and go into a drainage area where vehicles can't go. Interesting behaviour by Swazi. 




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Venezuela epaiva Offline
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Spotted Hyena in Museo de Ciencias de Caracas, Venezuela 

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Brazil Matias Offline
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Kinship and similarity drive coordination of breeding-group choice in male spotted hyenas

Quote:Abstract

When and where animals reproduce influences the social, demographic and genetic properties of the groups and populations they live in. We examined the extent to which male spotted hyenas (Crocuta crocuta) coordinate their breeding-group choice. We tested whether their propensity to settle in the same group is shaped by passive processes driven by similarities in their socio-ecological background and genotype or by an adaptive process driven by kin selection. We compared the choices of 148 pairs of same-cohort males that varied in similarity and kinship. We found strong support for both processes. Coordination was highest (70% of pairs) for littermates, who share most cumulative similarity, lower (36%) among peers born in the same group to different mothers, and lowest (7%) among strangers originating from different groups and mothers. Consistent with the kin selection hypothesis, the propensity to choose the same group was density dependent for full siblings and close kin, but not distant kin. Coordination increased as the number of breeding females and male competitors in social groups increased, i.e. when costs of kin competition over mates decreased and benefits of kin cooperation increased. Our results contrast with the traditional view that breeding-group choice and dispersal are predominantly solitary processes.
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United States afortich Offline
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Mom and Cub




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United States afortich Offline
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( This post was last modified: 05-30-2023, 05:16 AM by afortich )

Hyena Cub




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United States afortich Offline
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( This post was last modified: 07-27-2023, 12:53 AM by afortich )

Hyena vs prince Maribye young leopard




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United States afortich Offline
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Hyenas mating  Lol




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Bangladesh TheHyenid76 Offline
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Interactions between Spotted Hyenas & Brown Hyenas. Information & images from African Predators by Dr. Gus Mills

In a serious encounter, a spotted hyena may violent kill its less aggressive relative. Dr Gus witnessed such an event.


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Where spotted hyenas are abundant in large numbers, brown hyena numbers are low and many not even be found.


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"Usually, however, the brown hyaena is evicted"


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Bangladesh TheHyenid76 Offline
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Spotted Hyena predation on Pachyderms - Part I

Rhinos

Spotted hyenas have been recorded attacking and killing adult black rhinos. They also readily scavenge on rhinos that have died of various causes (natural, poaching etc). For obvious reasons, hyenas mostly attack little rhino calves.

Information by Dr. Hans Kruuk (a renowned expert on Hyenas) & author of "The Spotted Hyena. A Study of Predation and Social Behavior"

He observed a pack of 15 hyenas attacking a mother and calf and was certain that hyenas would kill the calf

"Once a female rhino was accompanied by a small month-old calf with a broken hind leg (pl. 34). There were fifteen hyenas around the pair attempting to bite the calf, trying especially to grab the ears (which were half torn off) and the tail, while the mother and the calf itself made repeated short charges at them. The calf stood smaller than the hyenas at the shoulder and stayed close to its mother. It was limping very badly, and the bone of the broken leg was sticking through its skin. The hyenas would probably have killed it in the end, but it was shot for study purposes by another scientist."


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"On another occasion six hyenas were closely following a rhino mother with a calf about six months old. The hyenas were obviously interested in the calf and bit it once in the hind leg, whereupon it charged at them; the mother showed no interest in the hyenas. But on other occasions, I have seen rhinos go quite far out of their way to charge at hyenas lying or standing on the plains-the hyenas avoided the rhinos at distances of over 20 m. According to Goddard (1967) young rhinoceroses (up to the age of four months) are vulnerable to hyena predation; he observed three instances when hyenas tried unsuccessfully to catch a young calf, but they were always repulsed by the charges of the mother or of the calf itself."


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This the image of the hyenas attacking rhino calf with broken hind leg.

"Rhinoceros protecting her injured calf (broken hind leg), Ngorongoro"


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The Spotted Hyena : A Study of Predation and Social Behavior

Information by the same scientist from his author book, "Hyaena"

Hyenas attack rhino calves and their combined effort can successfully break the rhino mother's defence. Hyenas may even attack adult rhinos which explains why some rhinos are earless!

"The rhinoceros, that huge, armoured animal weighing up to 3000 lbs, can hardly be expected to be a fair prey for hyaenas. They are left in peace, though sometimes a party of boisterous 'fisi' may spend some time 'rhino-baiting'-it looks just like a game. But one evening I saw a mother rhino with a small calf walking past a hyaena den, just as it was getting dark, when suddenly hyaenas converged on the pair from all directions. About 25 hyaenas attempted to grab the calf, whilst its mother and the calf itself put up a very spectacular resistance. At the end of a 2.5 hour fight the calf had lost its ears and its tail, and was bleeding from many wounds-but the two were still holding out. Then unexpectedly another hyaena came running past on the heels of a wildebeest bull, and given the choice the attacking hyaenas chose to follow up the wildebeest rather than the rhino calf. The wildebeest was killed, and the rhino calf survived; two weeks later I met it again, looking rather shapeless without its normal appendages, but otherwise perfect. The calf was saved more or less by accident, but I have no doubt that on other occasions the hyaenas' combined efforts against the rhino's defence would be successful. The observation certainly indicated why some adult rhinos are earless!"


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Photos of the attack described by Dr Hans

"Attempt to kill a rhino calf at night"


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Description of how adult rhinos may end up on the stomachs of hyenas.


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"Rhinos in Ngorongoro Crater, speared by Masai, eaten by hyaenas after they died in agony with spears in their body"


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*This image is copyright of its original author


Hyaena - Hans Kruuk

Incredible modern account (with images) of five hyenas killing an adult injured white rhino

"Five hyenas had trapped the rhino cow in the dam and were launching repeated attacks on her and were doing their best to kill her in the dam. They were biting her at the base of her tail and grabbing her by the ear and pushing her head underwater trying to drown her. (See the sequence of events pictured below)."

"Hyenas pushing the rhino into the dam"


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"Hyenas attacking in the water"


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"The rhino cow fights back"


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"A temporary respite"


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"The rhino succumbs"


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An extraordinary hyena attack
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Bangladesh TheHyenid76 Offline
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( This post was last modified: 01-06-2024, 07:04 PM by TheHyenid76 )

Hunting Success in the Spotted Hyena: Morphological Adaptations and Behavioral Strategies

Abstract

Once considered mere scavengers, it is now widely recognized that hunting is more important than scavenging in the feeding ecology of spotted hyenas (Crocuta crocuta). In this chapter, we outline the extraordinary morphological and behavioral adaptations possessed by these bone-cracking hyenas for efficient hunting and foraging within the context of their complex social organization. These social carnivores live in female-dominated societies structured by fission-fusion dynamics in which individuals hunt alone or in small groups to avoid feeding competition but join forces in large-scale cooperation with kin and non-kin groupmates to defend food from African lions (Panthera leo) and members of neighboring groups of hyenas. We discuss how social rank and age influence every aspect of their hunting behavior and consider the inevitable trade-offs faced regarding cooperative hunting of ephemeral prey. Finally, we evaluate what is known about the cognitive demands and conservation implications associated with the behavioral flexibility possessed by these efficient hunters.

Fig. 5.1 Spotted hyenas are efficient predators able to capture prey exceeding their own body size such as wildebeest and oryx. Individual spotted hyena hunters capture most ungulate prey items when hunting alone or in pairs, but some prey, such as plains zebra, may only be taken down cooperatively (photos by Jennifer Smith, Gus Mills, and Joey Verge)


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Fig. 5.2 Data from a comprehensive meta-analysis of 15 studies on spotted hyenas observed in six different countries across the full geographic distribution of spotted hyenas demonstrates the common and infrequently killed prey of spotted hyena in relation to prey availability. Reprinted with permission from Hayward (2006) (Figure 1, page 610), Journal of Zoology, 270(4)


*This image is copyright of its original author

Fig. 5.3 Spotted hyenas are efficient hunters that directly kill 60–95% of the prey they consume and regularly capture prey nearly three times their own size, such as the wildebeest (above) and a hippo (below). Their powerful jaws permit these bone-cracking hyenas to devour the entire prey item to a pile of bones in a matter of minutes (photos by Heather E. Watts and Kate Yoshida)


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Hunting Success in the Spotted Hyena: Morphological Adaptations and Behavioral Strategies
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