Alina Bradford

Learn about the egg-laying, venomous, duck-billed platypus.

reference Orcas, or killer whales, are the largest of the dolphin family.

Reference Seasons are periods of the year with distinct weather conditions and day lengths. Earth's four seasons are spring, summer, autumn (fall) and winter.

Reference Empirical evidence is information that is acquired by observation or experimentation and is used to prove or disprove a hypothesis.

Reference Donkeys, also called burros and asses, are found throughout the world. They look a lot like their cousins, but have long, floppy ears and tend to be stockier than horses or zebras.

Reference A scientific theory is based on careful examination of facts. It is much different from the non-scientific use of the word.

Reference Mexican culture varies widely throughout the country, but traditions are highly valued as is its long and storied history.

A scientific hypothesis is a tentative, testable explanation for a phenomenon in the natural world.

Science is a systematic and logical approach to discovering how things in the universe work.

A scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it.

Reindeer and caribou are members of the deer family, and while they don't fly, they do have Rudolph's nose.

Reference The term transgender describes people whose gender identity differs from the sex to which they were assigned at birth.

Reference Tardigrades, often called water bears or moss piglets, are near-microscopic animals that are extremely resilient.

reference Riboflavin is a B-complex vitamin that helps the body break down carbohydrates, proteins and fats to produce energy.

Reference The corpse flower (Amorphophallus titanum) also known as titan arum smells of rotting flesh and death when it blooms approximately every seven to nine years.

Megalodon was the largest shark and one of the largest fish on record. It went extinct about 2.6 million years ago.

Mustang horses roam freely across the western United States and are a symbol of pioneering spirit, but they aren't quite wild.

The ears are complex systems that not only provide the ability to hear, but also make it possible to maintain balance.

The coyote is a clever animal that has adapted well to growing human populations and habitat loss.

Most sexually active men and women will contract HPV at some point in their lives. So, yes, you should probably get the vaccine.

Penicillin is was once hailed as a "miracle drug." However, some bacteria have become resistant to penicillin, making those infections difficult or even impossible to treat.

Mumps is an unpleasant and highly contagious disease, but a simple two-dose vaccine is 88% effective against the infection.

Prior its eradication in 1980, smallpox killed hundreds of millions of people globally.

With their big ears and long noses, the elephant is one of the most recognizable animals in the world.

Giant pandas, known for their distinctive markings and playful personalities, are considered China's national treasure.