Dr. Dolittle

Need pest control, get a spider

A new study shows that globally, spiders consume 400-800 million tons of prey each year. That’s roughly more than double the amount of fish and meat that humans consume. Impressive…yet creepy at the same time. I suppose we should thank them for their pest control efforts. Sources: M Nyffeler, K Birkhofer. An estimated 400–800 million tons of prey…

Water bears, aka tardigrades, are resilient little creatures. These microscopic animals can survive both freezing and boiling temperatures, radiation, high pressure, starvation, the vacuum of space and even desiccation. This last ability caught the attention of a team of researchers interested in how they are able to survive for years despite being completely dried out, an ability known…

Fluorescent frogs

via GIPHY A new article published in the Proceedings of the National Academy of Sciences presents the discovery of a species of frog with fluorescence. The South American polka dot tree frog, aka Hypsiboas punctatus is already rather cute under normal light. But when exposed to UV light, this frog really shines. It gets its glowing personality from…

Bisphenol A (BPA) has earned a bad reputation as a potential endocrine disrupting chemical in several studies of developing animals. Some studies even report correlations of BPA levels with certain diseases in humans. Thus it is not surprising there are a plethora of BPA-free food containers, especially for baby food and bottles, as our most common route of exposure…

Researchers studying komodo dragons (Varanus komodoensis) at George Mason University discovered 48 previously unknown peptides in their blood that might have antimicrobial properties. Their findings were published in the Journal of Proteome Research. For the largest lizard, these peptides may help prevent the animals from getting infections from their own saliva, which is host to at least 57 species…

Growing meaty fish

Similar to humans, muscle growth in fish is increased with exercise. Unlike humans, however, teleost fish are able to continue growing in length as well as weight throughout their lives. This type of meat, I mean muscle, growth happens in two ways: 1) muscle cells get bigger and 2) new muscle cells form. Researchers at the University of Barcelona in…

Fin whales have coiled nerves

Fin whales have big mouths, really big mouths. When your meals consist of tiny krill, it is understandable why you would evolve the ability to stretch your mouth super-wide. With each meal comes a lot of water, which expands a pouch in the bottom of their mouths. As the pouch expands, all of the tissues in the pouch expand…

Pitcher plants are a known enemy of insects, but perhaps beneficial for people suffering from celiac disease. Chemist Dr. David Schriemer at the University of Calgary was studying the pitcher plant Nepenthes x ventrata (shown above) in his search for an enzyme similar to pepsin for use in his experiments. Pitcher plants secrete digestive fluids with a pH similar…

As I was looking through the scientific literature the other day, I came across an article published in 1973, “The Evolutionary Advantages of Being Stupid.” With a title like that, how could I not read it? In this article Dr. Eugene D. Robin discussed how larger and more complex brains are associated with greater intelligence, which…

I love fish. The diversity of these aquatic creatures is so vast, I find them fascinating. Take the eel for example: In a study published this month in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology, researchers wanted to link information they learned from sequencing the RNA of eels with understanding how…