Evolution in an Urbanizing World
Think about a classic urban species. The first ones that come to mind are usually rats, pigeons and cockroaches. I’d bet that less than 10% of people reading this thought of a reptile. With cockroaches (and possibly ants) being the exception, most big names of the city are birds and mammals. Rats, mice, squirrels, (feral)... Continue Reading →
Do you remember when was the last time you blew dandelion seeds? Do you remember the last time you stopped your busy schedule and noticed a dandelion blooming? As far as I can remember, I haven't done this since I was in primary school. Why are dandelions becoming more and more rare in big cities?... Continue Reading →
At first glance, a city is a hodgepodge of buildings, busy streets and public squares, people, traffic, and overall bustle. Yet, if you manage to see past the cacophony of everyday life, there is so much more to explore. A small co-resident of many cities, the ivy bee, reminds us of this. Colletes hederae, more... Continue Reading →
Knotted willows characterise many Dutch landscapes, where they are often seen in a row along creeks that have existed for decades. These willows are pruned every few years, which causes the characteristic wide “knot” at the treetop to form over time. Complex shapes can form due to this pruning, and it is quite common to... Continue Reading →
Spotted Lanternflies (Lycorma delicatula) have become an unavoidable nuisance since their arrival in the Big Apple in 2020. These clumsy hemipterans have managed to dominate the urban jungle due to their bright red warning coloration, which is indicative of their bitter tasting chemicals they uptake from their favorite food source, the Tree-of-Heaven (Ailanthus altissima). Despite... Continue Reading →
Have you ever seen a groundhog in Central Park? Or any other urban park? https://twitter.com/DiveArtist/status/1683549457999175680 According to @BirdCentralPark, these adorable rodents are not a common sight in Central Park, but there have been known individuals in the northern parts of the park. The groundhog (Marmota monax) is a very widespread North American species. Their range... Continue Reading →
The Asian Ladybeetle (Harmonia axyridis) is a common sight in many urban gardens, such as those on Governor's Island in New York Harbor. They are voracious predators, feeding on soft-bodied arthropods like aphids and scale insects. These beetles were imported into the united states in 1916 to help control insect pests. Larval Asian Lady beetle... Continue Reading →
Native to the Indian subcontinent and the southern fringes of the Sahel, the ring-necked parakeet (Psittacula krameri) looks wonderfully out of place in the cities of Western Europe. How and when exactly the colourful bird species established itself in isolated pockets so far from its naturally occurring range is heavily disputed, and subject to many... Continue Reading →
When I returned to my hometown suburb in Texas, I was greeted by the familiar sight of Muscovy Ducks (Cairina moschata) hanging out in and around the numerous constructed wetlands that keep my suburb from going underwater. Notably, male Muscovy Ducks are the largest duck in North America! Despite being such a common sight in... Continue Reading →
While huddled up in a nook on my apartment's rooftop, camera set up and aimed at the skies above, I briefly witnessed a skirmish between a Red-tailed Hawk (Buteo jamaicensis) and a Peregrine Falcon (Falco peregrinus). I was able to document the interaction above my head with the featured image above. I feel so honored... Continue Reading →
Check out this fun-loving gull and its new toy! https://twitter.com/GarethUnwin85/status/1597610347212734464 This gull seen last week at Queen's Park in Brighton, UK, seems to have been enjoying a game of tennis! Gulls species are notoriously difficult to differentiate. There are more than 50 species of gulls, the majority being part of the genus Larus. If observing... Continue Reading →
Check out these dueling kangaroos in a park in Australia's Gold Coast region! New Yorkers are used to seeing squirrels and rats roam around, but Australian residents sometimes encounter much larger mammal species in their cities. There are four species of kangaroos that occupy different ranges across the Australian continent. The Red Kangaroo, Macropus rufus, is... Continue Reading →
While I was out birding on Governor's Island, My friends and I came across this old traffic cone. It stood out to me as a sore thumb, a bright red monolith in a lawn of green grass. My curiosity led me to peek inside, and lo and behold! There was a Common House Spider (Parasteatoda... Continue Reading →
Check out this Great Blue Heron's fun new perch! Kate spotted a heron sitting very comfortably on a discarded deck chair in Surrey, BC. Based on the condition of that chair, looks like lots of individuals have been utilizing this transplant toilet! Do you have a photo or video of an urban species doing something... Continue Reading →
Check out this Red-Tailed Hawk going dumpster diving in Morningside Park on Wednesday. This resourceful hawk didn't hesitate to dive in and search for an afternoon snack, along with a shopping receipt! The hawk appeared very comfortable hopping in and out of the trashcan without injuring its wings. Perhaps this is a new behavior to... Continue Reading →
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