Feeding in Mammals: Comparative, Experimental, and Evolutionary Insights on Form and Function

Williams, Susan H.

doi:10.1007/978-3-030-13739-7_18

Cited by 12 publications

(15 citation statements)

References 181 publications

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“…Examples of LAR of the jaws are becoming increasingly widespread across vertebrates and across feeding strategies. Recent kinematic analyses using XROMM have found LAR during food processing ( Bhullar et al 2019 ; Laurence-Chasen et al 2019 ; Williams 2019 ), and this study extends LAR of the jaws to suction-feeding bamboo sharks ( C. plagiosum ) with strong eversion and inversion of the lower jaws and eversion of the upper jaws during food capture. Jaw LAR has also been hypothesized for biting, grasping, and ant eating, based on specimen manipulations and modeling ( Oron and Crompton 1985 ; Frazzetta and Prange 1987 ; Naples 1999 ) and could be present in any taxon when contralateral jaw elements are unfused.…”

Section: Discussionsupporting

confidence: 60%

“…When LAR of the jaws is recorded in vivo it is associated with unfused symphyses of the jaws (e.g., Lieberman and Crompton 2000 ; Bhullar et al 2019 ; Laurence-Chasen et al 2019 ; Williams 2019 ). This association is limited in sample size, but consistent across a wide range of taxa and whereas prior studies measured LAR in vivo during food processing behaviors, this study extends the behavioral breadth of LAR to suction feeding.…”

Section: Discussionmentioning

confidence: 99%

“…LAR of vertebrate jaws is hypothesized to be a key factor in the feeding mechanisms of a variety of vertebrates ( Brainerd and Camp 2019 ). However, LAR of the jaws has only been documented in a handful of mammal taxa ( Kallen and Gans 1972 ; Oron and Crompton 1985 ; Bhullar et al 2019 ; Williams 2019 ), and in freshwater stingrays ( Potamotrygon motoro , Laurence-Chasen et al 2019 ). Jaw LAR has been hypothesized for anteaters ( Naples 1999 ), bats ( Kallen and Gans 1972 ), Tenrec ( Oron and Crompton 1985 ), a cichlid fish ( Aerts 1985 ), oceanic sharks ( Frazzetta and Prange 1987 ; Chappell and Seret 2021 ), and white spotted bamboo sharks ( Ramsay and Wilga 2007 ).…”

Section: Introductionmentioning

confidence: 99%

“…Advances in X-ray video recording have improved the reconstruction of three-dimensional kinematics of feeding among vertebrates ( Brainerd et al 2010 ; Brainerd and Camp 2019 ; Williams 2019 ). Recent studies with X-ray Reconstruction of Moving Morphology (XROMM) have revealed additional degrees of motion in the jaws of vertebrates.…”

Section: Introductionmentioning

confidence: 99%

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Long-Axis Rotation of Jaws of Bamboo Sharks (Chiloscyllium plagiosum) During Suction Feeding

Scott

Brainerd

Wilga

2022

Integrative Organismal Biology

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Long-axis rotation (LAR) of the jaws may be an important component of vertebrate feeding mechanisms, as it has been hypothesized to occur during prey capture or food processing across diverse vertebrate groups including mammals, ray-finned fishes, and sharks and rays. LAR can affect tooth orientation as well as muscle fiber direction and therefore muscle power during feeding. However, to date only a handful of studies have demonstrated this LAR in vivo. Here, we use XROMM to document LAR of the upper and lower jaws in white-spotted bamboo sharks, Chiloscyllium plagiosum, during suction feeding. As the lower jaw begins to depress for suction expansion, both the upper jaw (palatoquadrate) and lower jaw (Meckel's cartilage) evert, such that their toothed surfaces move laterally, and then they invert with jaw closing. Eversion has been shown to tense the dental ligament and erect the teeth in some sharks, but it is not clear how this tooth erection would contribute to suction feeding in bamboo sharks. Two recent XROMM studies have shown LAR of the lower jaws during mastication in mammals and stingrays and our study extends LAR to suction feeding and confirms its presence in shark species. Examples of LAR of the jaws are becoming increasingly widespread across vertebrates with unfused mandibular symphyses. Unfused lower jaws are the plesiomorphic condition for most vertebrate lineages and therefore LAR may be a common component of jaw mechanics unless the mandibular symphysis is fused.

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Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Long-Axis Rotation of Jaws of Bamboo Sharks (Chiloscyllium plagiosum) During Suction Feeding

Scott

Brainerd

Wilga

2022

Integrative Organismal Biology

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“…In mammals, feeding behaviour is an important factor that determines the successful adaptation of vertebrates to their environment. Mammalian feeding has been the subject of intense study from comparative, functional and biomechanical perspectives (Williams, 2019). From the biomechanical perspective, the tongue—along with other organs in and near the oral cavity—plays a major role in feeding activity (Iwasaki, 2002).…”

Section: Introductionmentioning

confidence: 99%

Morphology of lingual papillae in the Javan mongoose (Herpestes javanicus) by scanning electron microscopy and light microscopy

Kusuma

Damia

Megawati

et al. 2022

Anat Histol Embryol

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The Javan mongoose (Herpestes javanicus) belongs to the genus Herpestes, order Carnivora, a species that lives in diverse habitats, such as rainforests, agricultural areas and rice paddies. This species mainly feeds on other vertebrates, including insects, arachnids, molluscs, fish, reptiles, birds and small mammals (Chutipong et al., 2016). Their diet also includes various types of fruit (Haligur et al., 2020).Overall, Herpestidae comprise 33 species from 14 genera, with only one genus (Herpestes) occurring in Asia (Wozencraft, 2005).Previous molecular studies on Herpestidae suggested the existence of two main clades: (1) true social mongooses (Crossarchus, Helogale, Liberiictis, Mungos and Suricata) and (2) solitary mongooses (i.e. the yellow mongoose Cynictis penicillata). Furthermore, these studies suggest a single origin of eusociality (Flynn et al., 2005;Perez et al., 2006;Veron et al., 2004). The molecular analysis also highlights that Herpestes are not monophyletic by demonstrating

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Ingestion in Mammals

Laird¹

2021

Encyclopedia of Life Sciences

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Living and fossil mammals are incredibly diverse in their feeding morphology and behaviours. For example, mammalian feeding adaptations range from filter feeding in whales to bats catching insects mid‐flight. Mammals share aspects of their cranial morphology compared to other vertebrates including the bones of the skull, the dentition, the cheek and chewing muscles, the lips and the lip musculature, the palate, the tongue and the pharynx. In addition to their anatomy, mammals are behaviourally distinct from other vertebrates through their food‐processing abilities inside and outside of the oral cavity, mastication, swallowing and the presence of suckling in infants. The appearance of these anatomical features and adaptations associated with these behaviours are key to distinguishing the earliest mammals in the fossil record. Key Concepts Mammals are distinguished through aspects of their craniodental anatomy and their feeding behaviours. Feeding in adult mammals can be divided into four stages: preingestion, ingestion, food transport and swallowing. Ingestion is constrained by size and mechanical properties of the food item. Infant mammals use two feeding stages: suckling and swallowing. Early fossil mammals are distinguished by adaptations to the feeding system.

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Feeding in Mammals: Comparative, Experimental, and Evolutionary Insights on Form and Function

Cited by 12 publications

References 181 publications

Long-Axis Rotation of Jaws of Bamboo Sharks (Chiloscyllium plagiosum) During Suction Feeding

Long-Axis Rotation of Jaws of Bamboo Sharks (Chiloscyllium plagiosum) During Suction Feeding

Morphology of lingual papillae in the Javan mongoose (Herpestes javanicus) by scanning electron microscopy and light microscopy

Ingestion in Mammals

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