Author

Darnell Jefferson

Darnell Jefferson is an associate editor at Biology Insights who covers marine mammals. Based in Banff, Alberta, he earned a BSc in zoology from the University of Guelph. Jefferson previously reported for a local television station and volunteered as a whale watch naturalist.

How Long Do Beluga Whales Live in Captivity?Aquatic
How Much Do Whales Weigh? From Orcas to Blue Whales Aquatic
Why Is a Dolphin a Mammal and Not a Fish?Aquatic
How Do Whales Drink Water Living in Saltwater?Aquatic
Which Dolphin Species Are Endangered?Aquatic
Is an Orca a Mammal? The Biology of This Apex Predator Aquatic
How Many Orca Attacks on Humans Have There Been?Aquatic
What Are Narwhal Tusks Made Of?Mammals
Why Are Orcas Black and White?Aquatic
What’s the Biggest Thing a Whale Can Swallow?Aquatic
What Is the Lifespan of a Beluga Whale?Aquatic
How Much Does Whale Poop Weigh and Why Is It Important?Aquatic
Can You Drink Whale Milk and Why Humans Don’t Mammals
Why Do Whales Blow Water From Their Blowholes?Aquatic
Why Dolphins Are Considered Bad Animals Aquatic
Are Dolphins More Dangerous Than Sharks?Aquatic
How Many Deaths Are Caused by Dolphins Per Year?Aquatic
What Do Whales Do at Night?Aquatic
Do Whales Nurse Their Babies? How They Nurse Underwater Aquatic
Can Dolphins Sense Pregnancy? The Science Behind It Aquatic
How Much Does an Adult Sperm Whale Weigh?Aquatic
Do They Still Hunt Whales? The Current State of Whaling Environment
How Long Is a Blue Whale’s Tongue and How Much Does It Weigh?Aquatic
Why Are Amazon’s Pink River Dolphins Pink?Aquatic
Is a Dolphin a Whale? Explaining the Family Connection Aquatic
How Big Is Whale Poop and Why Is It So Important?Aquatic
What Color Are Dolphins? And Why It Matters Aquatic
What Bad Things Do Dolphins Actually Do?Aquatic
What Is Whale Oil and What Was It Used For?Aquatic
How Big Is a Whale’s Eye and How Does It Work?Aquatic