The world was once teeming with some truly mind‑blowing critters. When you think of the distant past, you probably picture dinosaurs, but the planet was also home to a dazzling array of other extraordinary beasts. In this roundup of 10 awesome extinct wonders, we’ll dive into ten spectacular animals that rarely get the spotlight they deserve.

10 Awesome Extinct Creatures You’ve Never Heard Of

10. Livyatan The Whale That Ate Other Whales

Twelve million years ago, a massive sperm‑whale relative called Livyatan melvillei prowled the ancient seas off what is now Peru. It matched modern sperm whales in overall length—reaching up to 18.5 meters (about 60.7 feet)—but boasted a terrifyingly oversized mouth bristling with gigantic, slicing teeth.

These monstrous cetaceans hunted other whales, wielding jaws three times larger than those of today’s killer whales. Their saber‑like teeth measured roughly a foot long and four inches wide, perfectly engineered to rip massive baleen whales apart. Even the legendary megalodon shared their waters, yet Livyatan sat atop the food chain with no natural predators.

In their Peruvian realm, Livyatan preyed on the giant baleen giants of the era, turning the ocean into a deadly arena where the two biggest marine carnivores ever lived clashed over the same meals.

9. Paraceratherium The Rhino Five Times Heavier Than An Elephant

Paraceratherium may hold the title for the largest land mammal to ever stride the Earth. This colossal, horn‑less rhinoceros stretched about 7.5 meters (25 feet) long, with shoulders towering 5.5 meters (18 feet) high and a neck that could elevate the animal to an astounding 8 meters (26 feet).

Weight was where its true awe‑inspiring factor lay: the biggest individuals tipped the scales at roughly five times the mass of a modern African elephant. Its massive mouth housed teeth comparable in size to an elephant’s tusks, and a gigantic tongue could sweep entire trees clean with a single lick.

Once the undisputed heavyweight champion of terrestrial mammals, Paraceratherium now shares the spotlight with the mysterious Asian elephant Palaeoloxodon namadicus, whose fragmentary remains hint it might have been even larger, though a complete skeleton remains elusive.

8. Cygnus Falconeri The Giant Swan That Lived With Tiny Elephants

Middle Pleistocene Malta hosted a truly surreal scene: dwarf elephants sharing their habitat with enormous swans. The species Cygnus falconeri boasted wings spanning three meters (10 feet), yet their bulk rendered them flightless, forcing them to forage on land.

These hulking birds towered over the resident pygmy elephants, which stood a modest 80 centimeters (31 inches) tall—roughly the size of a large dog. Their sheer size meant they never truly took to the air, instead waddling across the island’s terrain.

Artistic depictions often show these giant swans harassing the tiny elephants, and while concrete evidence of predation is lacking, the vivid mental image of massive swans looming over dwarf pachyderms captures the imagination.

7. Platybelodon The Elephant With Scythe‑Like Teeth

The early proboscidean Platybelodon may look odd at first glance, but it was a true powerhouse. Its most distinctive feature was a pair of enormously elongated lower incisors that resembled giant, curved scythes.

These teeth formed a massive, shovel‑shaped lower jaw, enabling the creature to scoop up soil, roots, and hidden vegetation. The incisors also functioned like giant blades, allowing Platybelodon to slash through thick foliage with ease.

Imagine witnessing this beast in action: it would grasp sturdy branches with its trunk, then swing its scythe‑like teeth to cleave them as if wielding a massive machete—truly a sight that would silence any giggle.

6. Heteromorph Ammonites The Mollusks With Crazy, Twisted Shells

When we picture ammonites today, we imagine smooth, spiraled shells. Yet during the Cretaceous, a bizarre group called heteromorph ammonites sported wildly contorted shells that defied the classic coiled design.

Think of a coiled rope tangled into knots—that’s the kind of chaotic form seen in genera like Nipponites, whose shells resembled tangled earbuds or a ball of string. These odd shapes likely made locomotion a challenge, leaving paleontologists puzzled about how such creatures moved.

Not all heteromorphs were grotesque; some, like Helioceras, displayed elegant, staircase‑like spirals that rose gracefully upward, showcasing the incredible diversity within this extinct mollusk group.

5. Garganornis The Big Angry Goose That Used Its Wings To Fight

Ancient Italy was home to a formidable flightless bird named Garganornis ballmanni. Weighing around 23 kg (50 lb), this goose possessed massive wings that it wielded like bludgeons rather than for flight.

Each wing was studded with sharp, bony knobs designed to deliver powerful slaps to rivals. Though primarily a herbivore grazing on land plants, the bird could fend off predatory birds by delivering a crushing “knuckle sandwich” with its armored wings.

Imagine a modern goose’s aggressive hissing amplified a thousandfold—that’s the level of intimidation Garganornis could project, making it a true heavyweight in the ancient avian world.

4. Hoplitomeryx The Five‑Horned Deer

Sharing the same era as the combative goose, the enigmatic Hoplitomeryx sported a headgear that would make any mythological creature jealous: five distinct horns.

Beyond the typical pair of antlers found on modern deer, this species bore a second set of smaller horns curving above its eyes, plus a massive central horn jutting from the middle of its skull. Its canines were equally dramatic, extending outward like curved swords that remained visible even when the animal’s mouth was closed.

The result was a creature that looked part deer, part prehistoric armored helmet—an awe‑inspiring sight that combined elegance with an unmistakable air of menace.

3. Leedsichthys The Fish Bigger Than A School Bus

The title of the largest fish ever to swim our oceans belongs to Leedsichthys. Fossil evidence suggests it could reach a conservative estimate of about 17 meters (56 feet) in length—roughly the size of a school bus.

Because complete skeletons remain undiscovered, some scientists speculate it might have grown even larger, potentially rivaling the length of a blue whale. Its massive gill rakers were once mistaken for dinosaur jaws, underscoring just how gigantic this filter‑feeder truly was.

Even the massive dinosaurs of the Mesozoic likely eyed Leedsichthys as a tasty snack, occasionally snapping up these colossal swimmers as they glided through ancient seas.

2. Arsinoitherium The Double‑Horned, Elephant‑Size Rhinoceros

Arsinoitherium combined the bulk of an elephant with the silhouette of a rhinoceros, boasting a pair of massive nasal horns each about a meter (3.3 ft) long and a foot (1 ft) wide.

Adding to its intimidating arsenal, a smaller set of horns perched above its eyes. Though herbivorous, this creature stood roughly two meters (6.6 ft) tall, easily towering over any human observer.

Its only real vulnerability lay in its oddly bent, stumpy limbs, which limited its ability to chase predators—though, given its formidable horns, most threats thought twice before engaging.

1. Thylacoleo The Mammal With Earth’s Strongest Jaws

Among the most fearsome prehistoric predators, Thylacoleo—often dubbed the “marsupial lion”—boasted a bite force that may have eclipsed even that of the modern African lion.

Measuring roughly half the size of a lion, this marsupial possessed a skull built for crushing, with massive, fused teeth that acted like thick cleavers. Its retractable, razor‑sharp claws could be raised like a feline’s, and a sturdy, muscular tail provided a tripod‑like balance when it rose on its hind legs.

Likely an ambush hunter, Thylacoleo could scale trees to surprise prey such as giant kangaroos, delivering lethal slashes with its powerful claws before feasting on the carcass.

When it comes to the world of gender diversity, there are countless stories that stay under the radar. Below we dive into 10 transgender facts you might not have heard before, shedding light on everything from rarity and health challenges to financial hurdles and heartbreaking statistics.

10 Transgenderism Is Extremely Rare

Despite the steady stream of headlines about pronoun debates and bathroom policies, the reality is that transgender individuals make up a very small slice of the U.S. population. The media spotlight can give the impression that they represent a sizable demographic, but statistically they are among the tiniest minority groups nationwide.

A comprehensive 2016 analysis that aggregated multiple surveys over nine years found two key points: the proportion of transgender adults is gradually increasing, yet it remains minuscule—about one in every 250 adults, or roughly 0.4%. By contrast, the total share of lesbian, gay, or bisexual people sits around 4.0%. It’s striking how much attention is devoted to a community that is numerically modest.

9 High Rates Of HIV

The Centers for Disease Control highlights a stark health disparity: transgender people are three times more likely than the general population to receive a new HIV diagnosis. This heightened risk is frequently linked to the compounded stigma and discrimination that transgender individuals often face, which can limit access to preventive care.

One particular study revealed that 84% of the diagnosed cases were transgender women, while 15% were transgender men, and the remaining 1% identified as gender‑nonconforming. Alarmingly, up to 14% of transgender women are living with HIV, with Black transgender women accounting for nearly half of those infections. The Southern United States bears the brunt of these numbers, reflecting regional health inequities.

8 Transgender Surgery Is Older Than People Think

While many assume gender‑affirming surgery is a modern development, its roots stretch back nearly a century. The inaugural procedure—a mastectomy—was performed in 1926 at Magnus Hirschfeld’s renowned clinic in Germany. Four years later came the first penectomy, and the following year marked the world’s first vaginoplasty, though the patient unfortunately did not survive long after the operation.

The first American to undergo such surgery was Christine Jorgenson. In 1952 she journeyed to Denmark where surgeon Christian Hamburger performed the operation, and she even chose her new name to honor him. Jorgenson’s striking appearance and poise helped her become an early public figure for transgender visibility, inspiring many in the decades that followed.

7 Transgender Women Competing In Sports

The International Olympic Committee has permitted transgender athletes to compete since 2003. While participation by transgender men generally encounters little pushback, the inclusion of transgender women sparks debates over perceived competitive advantages. To address these concerns, the IOC instituted strict testosterone thresholds for female competitors.

These hormone regulations aim to level the playing field, yet questions linger. Many Olympic sports already use weight classes or other categorizations that can mitigate physiological differences. Moreover, the case of Caster Semenya—born female but naturally producing higher testosterone—highlights the complexity of enforcing “fair” standards. If Semenya must lower her hormone levels to compete, why can’t a transgender woman who does the same?

6 Post‑Surgery Regret Is Common

Information on post‑operative regret among transgender patients remains scarce, yet anecdotal reports suggest it’s not an uncommon phenomenon. Some surgeons note that patients return months or years after their procedures seeking reversal or modification of their surgical outcomes.

Limited studies indicate roughly one in every twenty transgender individuals experiences regret after surgery. Factors contributing to this include rushed decisions spurred by hormone therapy and insufficient access to comprehensive counseling, which might have otherwise helped patients make more informed choices before committing to irreversible procedures.

5 It’s More Expensive Than People Think

People with gender dysphoria have a spectrum of options, ranging from simple wardrobe changes to hormone replacement therapy. The most extensive route—sex reassignment surgery—carries a hefty price tag that places it out of reach for many.

Insurance coverage for these surgeries is rare; most plans either exclude the procedure entirely or only reimburse a fraction of the costs. Studies estimate the total expense can exceed $100,000, prompting many transgender individuals to pursue partial surgeries or adopt alternative methods like chest‑binding to achieve a gender‑congruent appearance without the full financial burden.

4 Sex With Transgender Women

Research on heterosexual men’s sexual experiences with transgender women is limited, but existing studies reveal intriguing patterns. Some men report they do not label themselves as gay even after intimate encounters with transgender women, regardless of whether the partner has completed surgical transition.

Anecdotal evidence suggests many men focus primarily on the partner’s feminine presentation. In one study, participants admitted to concealing their partner’s genitalia during sexual activity, often choosing positions or actions that kept the penis out of view, thereby preserving their self‑identification as straight.

3 Murder Rate Of Transgender People Is Rising

Although the absolute number of transgender murder victims remains relatively low, the trend in the United States shows a disturbing increase. In 2018, at least 26 transgender individuals—predominantly Black transgender women—were murdered. By 2019, the count had already reached 21, with Black victims again disproportionately represented.

The heightened vulnerability of Black transgender people stems from intersecting layers of discrimination based on gender identity, sexual orientation, and race. Surveys indicate that about 10% of transgender individuals experienced a physical assault within the past year, underscoring the pervasive threat of violence they face.

2 Transgender Surgery Complications: Common And Gruesome

All surgeries carry inherent risks, but gender‑affirming procedures present unique challenges. The most frequently reported complications involve the urinary system—specifically the bladder and urethra—due to the intricate nature of both male‑to‑female and female‑to‑male operations.

A 2017 study found that just over a third (33%) of transgender patients reported urinary complications. While surgical expertise has improved outcomes over time, the same research revealed that roughly 11% of patients required unplanned additional surgeries because of significant intra‑operative bleeding, a statistic derived from male‑to‑female procedures alone.

1 High Transgender Suicide Rate

Transgender individuals—both adults and teens—face an alarming propensity for suicide attempts. Studies show that up to 43% of transgender people have tried to end their lives at least once, a figure far exceeding rates among cisgender peers.

Contributing factors include pervasive bullying, unsafe school environments, and heightened rates of sexual assault. Approximately 30% of transgender teens report feeling unsafe traveling to or from school, and a similar proportion have experienced sexual violence. Compared to straight male teens (5% suicide attempts) and straight female teens (10%), transgender youth are nearly twice as likely to contemplate or commit suicide.

If you or someone you know needs help, the U.S. National Suicide Prevention Lifeline is available 24/7 at 1‑800‑273‑8255.