Field Frame Friday: Karma Karma Chameleon

Many chameleons (especially of genus Furcifer) can change color extremely rapidly not only for camouflage, but also for communication, courtship, and contests. A recent study finds that complex and quick color changes are attributed to two layers of skin that contain crystals that reflect light. The double layer of skin also may provide thermal protection…

Field Frame Friday: A Sunrise Serenade with Song and Smells

Many bat species sing complex ultrasonic songs to attract mates and repel rivals [1]. An extremely eloquent singer is the neotropical great sac-winged bat (Saccopteryx bilineata). Males of this bat species sing year round during dusk and dawn, but singing is most intense during the annual mating season [2]. Then, harem males will sing for…

Field Frame Friday: Not So Busy Bee

Busy bee? Not so much. This bee is taking a nap in this flower, which is more common than you may think! Social bees like honey bees have a nest to come home to every night and only sleep outside if they get lost during sundown or become too cold to fly back to the…

Field Frame Friday: Sneaky Snake Alert!

Many animals may respond to the presence of a predator by eliciting a signal that alerts other individuals in the area. Since snakes are a major predator of monkeys, they often respond very strongly whenever one is nearby. The female long-tailed macaque (Macaca fascicularis) in this photo is very upset with a large boa constrictor…

Field Frame Friday: Happy Valentine’s Day!

Titi monkeys are pair-bonding monkeys. They engage in affiliative behaviors like the one depicted here: tail twining! Titi monkeys tail twine during the day in order to maintain contact with their partner, similar to hand-holding in humans. At night, titi monkeys tail twine to maintain proximity and help each other balance while sleeping! Happy Valentine’s Day!…

Field Frame Friday: There is no hiding from me, EYE see you!

Jumping spiders (phylogenetic family: Salticidae) of all arthropods (i.e. invertebrates with an exoskeleton)! In addition to the 2 sets of eyes seen in this photo, jumping spiders also have 2 sets of eyes on the top of their head. Each set has specialized function, from detecting changes in light, motion, and color, to the ability…

Field Frame Friday: A whole new meaning to being called a “bird-brain.”

While the idiom, “bird brain” may mean a silly or stupid person, we may want to reconsider it as a compliment. Turns out, African grey parrots (Psittacus erithacus) have more abstract logic than the average human toddler. When briefly shown the contents inside two canisters (walnuts or nothing) and then presented the parrots with the…

Field Frame Friday: No provisioning allowed!

When humans voluntarily feed wildlife, it is referred to as provisioning. Although this may appear a harmless and fun activity for visiting tourists, these small acts of “kindness” can have profound effects on wildlife. For example, provisioning can lead to increased aggression among individuals monkeys in a social group, as they are competing over a…

Field Frame Friday: Day gecko, night gecko

Madagascar day geckos (Genus Phelsuma) are important pollinators for Malagasy plants. In fact, the plants often have colored nectar, which is preferred by the day geckos. [Photo and caption by Meredith Lutz] Minnaar, I. A., Köhler, A., Purchase, C., & Nicolson, S. W. (2013). Coloured and Toxic Nectar: Feeding Choices of the Madagascar Giant Day…

Field Frame Friday: Mistletoe Munching

Mistletoe does not only serve to incite smooches on Christmas, but it’s also a tasty snack for Diademed Sifakas (Propithecus diadema) in Madagascar. When resources are few and far between in the winter, Sifakas rely on mistletoe and this reliance can reduce group cohesion in fragmented forests. Mistletoe may bring humans together, but it makes…