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
NEWS
Spiders Have Built-In Algorithm to Construct Webs
One of the many mysteries of biology is how a creature like a web-weaving spider with a tiny brain is able to systematically construct an elaborate web...

NEWS
Earth's Atmosphere Is Vital to Life
There are countless interconnected, precise, and non-coincidental features of Earth that directly contribute to our planet’s ability to sustain life....

NEWS
Did Dinosaur Herd Behavior Evolve?
It is hard to identify the behavior of creatures just from their fossils. An international team of paleontologists tried just that on a big group of dinosaur...

NEWS
New Ice Core Expected to Contain Creation Evidence
Three long ice cores have been drilled and extracted from the East Antarctic ice sheet: the EPICA Dome C, Vostok, and Dome Fuji cores. Secular scientists...

NEWS
Tree Rings Corroborate Vinland Viking Sagas
After Leif Eiriksson’s original voyage to North American shores, the Greenland Vikings remained in “Vinland the Good” for a time—but...

NEWS
Flood Explains Mysterious Crab in Amber
A team of evolutionary scientists from the U.S., China, and Canada recently found a complete tiny crab in amber.1 Publishing in Science Advances,...

NEWS
To Study Human Brains, Evolutionists Studied...Ants
The book of Proverbs states, “Go to the ant, you sluggard! Consider her ways and be wise” (6:6). Evolutionists went to the ant, not to learn...

NEWS
Open Ocean Dragonfly Migration Boggles the Mind
Animal migrations occur all over the earth among many types of creatures, with some winged creatures (birds and insects) making the most extreme and lengthy...

NEWS
Inside November 2021 Acts & Facts
Why do scientists discover similarities between human-engineered systems and creature adaptation? How does the Genesis Flood explain the Ice Age? How...

ACTS & FACTS
Creation Kids: Comparing Chimps and Humans
by Christy Hardy and Susan Windsor* You’re never too young to be a creation scientist! Kids, discover fun facts about God’s creation with...