Why God Created Large, Sharp Teeth | The Institute for Creation Research

Why God Created Large, Sharp Teeth

Nineteenth-century English poet Alfred Tennyson famously described nature as "red in tooth and claw."1 But were claws and teeth originally intended to draw blood, or were they used to eat vegetation?

Recently, three U.S. biologists studied the feeding habits of 11 Central and South American leaf-nosed bats and looked for "relationships between diet, tooth structure, feeding performance, and behaviour."2 Some bats eat insects and small vertebrates, some eat fruit and nectar, others a little bit of everything. Vampire bats, of course, will eat blood.

To conduct their research, which was published in 2011, the team generated three-dimensional images of the teeth and skulls of 17 bat species. The BBC featured some of the images on its website, such as the fruit bat skull below.3

 

 

 

 

 

 

 

 

 

 

 

The study authors found that fruit bats have more complicated surface features on their molars, which they use to crush fruit pulp. Insectivorous bat molars have pointed crests that are more efficient at shearing insect exoskeletons.

A 2012 study of multiple large fruit bat species that inhabit the same locations in Brazil found that although their chromosomes looked virtually indistinguishable at first, species-specific banding patterns show up when stained.4 A separate 2011 study found "a considerable range of individual variation" in Phyllostomatid vampire bat skulls.5

Since bat features are still adapting today, it stands to reason that the original Phyllostomatid bats that colonized the Americas also adapted their features as they diversified into today's species. But no evidence suggests either that bats evolved from non-bats or that they will ever evolve into a non-bat.

The fact that fruit bats use their sharp teeth to eat fruit fits with the biblical teaching that God originally intended animals to eat vegetation, not other animals:

Large, sharp teeth are not used solely for killing and ripping flesh from other animals. Fruit bats have sharp, pointed teeth, similar to those in cats, designed to quickly tear flesh from fruit. These teeth easily could remove flesh from an animal, but the fruit bat does not use them for this purpose.6

And the fact that other bats eat blood fits with the biblical teaching that sin resulted in a cursed creation. Bats now use their vegetation-eating equipment with less discrimination.

It makes sense that God would supply various creatures with large, sharp teeth so that they could eat the varied plant products He provided for their nourishment.7 But since the "law of sin and death" now operates in this world, animals and humans use what was originally good to accomplish what is inherently not good.8

References

  1. Tennyson, A. 1849. In Memoriam A. H. H., Canto 56.
  2. Santana, S. E., S. Strait, and E. R. Dumont. 2011. The better to eat you with: functional correlates of tooth structure in bats. Functional Ecology. 25 (4): 839-847.
  3. Sharp teeth aid bats' fruit diets. BBC Earth News. Posted on news.bbc.co.uk February 25, 2011, accessed February 25, 2012.
  4. de Lemos Pinto, M. et al. 2012. Cytotaxonomy of the subgenus Artibeus (Phyllostomidae, Chiroptera) by characterization of species-specific markers. Comparative Cytogenetics. 6 (1): 17-28.
  5. Orihuela, J. 2011. Skull variation of the vampire bat Desmodus rotundus (Chiroptera: Phyllostomidae): Taxonomic implications for the Cuban fossil vampire bat Desmodus puntajudensis. Chiroptera Neotropical. 17 (1): 863-876.
  6. Criswell, D. 2009. Predation Did Not Come from Evolution. Acts & Facts. 38 (3): 9.
  7. Genesis 1:30.
  8. Romans 8:2.

Skull image credit: Dumont Lab, University of Massachusetts, Amherst. Adapted for use in accordance with federal copyright (fair use doctrine) law. Usage by ICR does not imply endorsement of copyright holders.

* Mr. Thomas is Science Writer at the Institute for Creation Research.

Article posted on March 26, 2012.

The Latest
CREATION.LIVE PODCAST
Struck: Risking It All for the Truth | Creation.Live Podcast:...
In this unique episode, host Trey talks with three key people involved in creating Struck—an upcoming miniseries that shows the special ties between...

NEWS
Giant Ants Buried in Receding Flood Rocks
Evolutionary scientists are baffled by a large ant fossil found in British Columbia, Canada. Known as Titanomyrma, this same ant had been found previously...

CREATION PODCAST
Why Do Animals Hibernate? | The Creation Podcast: Episode 45
The word hibernation is often used in reference to deep sleep, but what is it really? What kinds of creatures hibernate? How does this demonstrate the...

NEWS
Thalattosuchians—Extinct Crocodile Relatives?
The Thalattosuchia are an extinct group of marine crocodylomorphs (a group that includes the crocodiles) that allegedly transitioned from land to water...

NEWS
The Star-Nosed Mole
The star-nosed mole (Condylura cristata) is a fascinating semi-aquatic mammal found in eastern Canada and the United States. Moles (placental mammals)...

NEWS
The Hexagon: An Indication of Order and Design in Nature
In nature, noncoincidental patterns and geometry exist everywhere. But the number six appears to overshadow nature’s mathematical landscape. Whether...

NEWS
Neanderthal Crab Bake
The evolutionary science community said it perfectly in their headlines: “Proof that Neanderthals ate crabs is another 'nail in the coffin'...

CREATION PODCAST
Is There Any Truth to Dragon Legends? | The Creation Podcast:...
Dragons are considered by many to be made-up creatures in fairytales and legends, but our ancestors produced many descriptions and depictions of "dragons,"...

NEWS
Our Sun, Finely Tuned for Life on Earth
Aside from appreciating the splendor of the sun during a beautiful sunrise or sunset, many rarely consider how special, necessary, and finely tuned...

NEWS
March 2023 ICR Wallpaper
"Sing to the Lord with thanksgiving; Sing praises on the harp to our God, Who covers the heavens with clouds, Who prepares rain for the earth, Who...