The BEST biology example

Hi y’all! It’s Caleb with the Elephant Care Team! My wife recently became a 7th grade science teacher, teaching life science. All school year, I keep joking that nearly every major concept in biology can be illustrated through one animal – an elephant! From the tiniest molecules to entire ecosystems, elephants are walking case studies in science. And the more you look at them through a biological lens, the more you realize they truly cover it all.

Let’s start small. Like, really small. At the biochemical level, elephants are built from the same core elements as every other living thing (carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur), just on a MASSIVE scale. Proteins build their muscles, hemoglobin carries oxygen through 10,000-pound bodies, and ATP (cellular energy) fuels every trunk lift and foot presentation. As hindgut fermenters, elephants rely on enzymes and microbes to help break down tough plant material, turning hay and browse into usable energy.

At the cellular level, every movement begins with specialized cells doing precise work. Muscle cells allow for both immense strength and delicate control. For example, an elephant’s trunk has more muscles than the entire human body, and it can pick up something as small as a piece of cereal, as flat as a tortilla shell, or as delicate as a potato chip without any issues. Neurons fire across a highly developed brain, supporting learning, memory, and complex social behavior. Even their thick, wrinkled skin (or epidermis) reflects cellular adaptations for protection and thermoregulation.

Gregor Mendel may have studied peas, but elephant genetics add another layer! DNA inside each cell provides the blueprints for tusk size, immune function, and more. Elephants are especially fascinating because of their multiple copies of tumor-suppressing genes, which researchers believe contribute to their relatively low cancer rates despite their size and long lifespans. At a population level, maintaining genetic diversity is essential for long-term health and sustainability.

Evolution tells the broader story of elephants’ survival and reproductive success. Elephants, both African and Asian species, are the product of millions of years of adaptation. Their trunks evolved into one of the most versatile appendages in the animal kingdom; tusks are modified incisors shaped by selective pressures; and their large ears help dissipate heat in warm climates. Relatives like the extinct wooly mammoth remind us that Proboscidea had adapted to very different environments over time.

Lastly, at the ecological level, elephants are often described as keystone species, which means they are essential to the success of the environments they live in. As large, megafauna species, elephants disperse seeds, modify vegetation, and even create access to water that other animals depend on. Their presence shapes entire landscapes.

What I love most about working with elephants is that all this science isn’t abstract, and I get to see it in action every day. When Msholo participates in a training session, I’m seeing biochemistry fueling muscle contractions, neurons firing across intricate networks, genes expressing traits shaped by evolution, and behaviors that ripple into ecosystems far beyond our Zoo. Elephants aren’t just remarkable animals to care for; they’re powerful reminders of how beautifully interconnected biology truly is.

So, the next time you remember that “the mitochondria is the powerhouse of the cell,” I encourage you to remember that “elephants are THE powerhouse of biology” because in my opinion, elephants are the BEST example in every biology class.

Caleb U.
Keeper III, Elephants