Scientists Think They Know How Whales Got So Big

iStock
iStock

It can be difficult to understand how enormous the blue whale—the largest animal to ever exist—really is. The mammal can measure up to 105 feet long, have a tongue that can weigh as much as an elephant, and have a massive, golf cart–sized heart powering a 200-ton frame. But while the blue whale might currently be the Andre the Giant of the sea, it wasn’t always so imposing.

For the majority of the 30 million years that baleen whales (the blue whale is one) have occupied the Earth, the mammals usually topped off at roughly 30 feet in length. It wasn’t until about 3 million years ago that the clade of whales experienced an evolutionary growth spurt, tripling in size. And scientists haven’t had any concrete idea why, Wired reports.

A study published in the journal Proceedings of the Royal Society B might help change that. Researchers examined fossil records and studied phylogenetic models (evolutionary relationships) among baleen whales, and found some evidence that climate change may have been the catalyst for turning the large animals into behemoths.

As the ice ages wore on and oceans were receiving nutrient-rich runoff, the whales encountered an increasing number of krill—the small, shrimp-like creatures that provided a food source—resulting from upwelling waters. The more they ate, the more they grew, and their bodies adapted over time. Their mouths grew larger and their fat stores increased, helping them to fuel longer migrations to additional food-enriched areas. Today blue whales eat up to four tons of krill every day.

If climate change set the ancestors of the blue whale on the path to its enormous size today, the study invites the question of what it might do to them in the future. Changes in ocean currents or temperature could alter the amount of available nutrients to whales, cutting off their food supply. With demand for whale oil in the 1900s having already dented their numbers, scientists are hoping that further shifts in their oceanic ecosystem won’t relegate them to history.

[h/t Wired]

A Nubian Goat Named Lincoln Was Just Sworn in as the Mayor of Fair Haven, Vermont

iStock.com/Evgeniia Khmelnitskaia
iStock.com/Evgeniia Khmelnitskaia

Lincoln the goat may not be housebroken, but she had no problem winning the race for mayor of Fair Haven, Vermont. The new mayor was officially sworn in on Tuesday, March 12, and before signing the oath of office with her hoof print, she marked the occasion by defecating on the town hall floor, the Boston Globe reports.

Prior to getting into politics, Lincoln the droopy-eared Nubian goat lived a simple life. A local family looking for a way to maintain the unruly vegetation on their property had purchased her two years ago when she was 1 year old. At age 3, Lincoln transitioned from munching grass full-time to running for public office.

Though Lincoln's win is impressive, her election didn't involve beating any human candidates. Town Manager Joseph Gunter came up with the idea to hold an election for honorary pet mayor of Fair Haven as way to raise money for a new playground. For a $5 fee, local kids were allowed to nominate the pet of their choice to be town mayor. Lincoln bested more than a dozen candidates, including a gerbil named Crystal and a pacifier-sucking dog named Stella, for the position.

The stunt didn't raise much money—the town came away with just $100 for the playground—but it did earn Fair Haven international attention. In order to go down in history as world's longest-serving animal mayor, Lincoln has to stick around for a while; Stubbs the cat was mayor of Talkeetna, Alaska for 20 years.

[h/t Boston Globe]

The 10 Most Popular Puppy Names of 2019

iStock.com/Lakshmi3
iStock.com/Lakshmi3

If you brought home a new dog or puppy recently and named it Luna, you’re far from the only one. The name, which means moon in Latin, is the most popular puppy name for 2019.

This analysis of cute canine monikers comes from Trupanion, a provider of medical insurance for pets. The company looked at its database of 500,000 dogs and crunched the numbers to identify the names that are currently having a moment. (Although some of the names that cracked the top 10 list, like Daisy and Max, have been around for quite some time.)

Interestingly, Luna wasn’t always popular. As Trupanion points out, “Looking back 10 years, Luna was barely a blip on the name game chart … not even cracking the list of top 20 names.” Nor did it appear on ​Banfield Pet Hospital's list of the 10 most popular dog names of 2018.

Often, there's some overlap between popular pet names and baby names. Luna was the 31st most popular baby name for girls in 2018. This is perhaps linked to the popularity of the Harry Potter character Luna Lovegood, as well as the publicity the name has received in recent years from celebrities like John Legend and Chrissy Teigen and Penélope Cruz and Javier Bardem, as both couples named their daughters Luna.

Second on the list of popular puppy names is Bella (its longer form, Isabella, was the fifth most popular baby name for girls last year). Check out the top 10 list below to see if your pooch’s name is trending right now.

1. Luna
2. Bella
3. Charlie
4. Bailey
5. Lucy
6. Cooper
7. Max
8. Daisy
9. Bear
10. Oliver

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