Monster Hunter Stories 3: All 9 Endangered Monster Species Locations and Egg Guide

Hunting the Rare: All Endangered Species Locations in Monster Hunter Stories 3

Monster Hunter Stories 3 allows Riders to tame the legendary beasts we’ve spent years tracking in the mainline series. However, the true gems of any collection are the endangered species. These rare monsters don’t just wander into your path; they are tucked away in the most secluded corners of the world, often guarded by formidable foes. At Digital Tech Explorer, we’ve put in the legwork to map out these elusive locations so you can bolster your party with the strongest Monsties available.

I’m TechTalesLeo, and today I’m guiding you through the treacherous terrain to find all nine endangered species. If you can overcome the “Invasive” guardians protecting these nests, you’ll secure some of the most powerful genes in the game. Let’s dive into the hunt.

Light pours out of a striped egg as it begins to hatch

1. Rathian (Azuria – Sunpetal Plains)

Rathian, a flying wyvern

The “Queen of the Land” is likely the first rare find you’ll encounter. Rathian’s den is situated on the eastern fringes of Azuria within the Sunpetal Plains. Be prepared for a fight, as the nest is occupied by an Invasive Yian Garuga. To claim your prize, prioritize breaking the Garuga’s legs; this weakens its mobility and forces a retreat.

A map showing Rathian's location in Sunpetal Plains

2. Lagiacrus (Azuria – Mirror Lake)

Lagiacrus, a leviathan

Deep within the waters of Azuria lies the Lagiacrus. You can find its hidden cave by navigating to the Catavan Stand located on the central island of Mirror Lake. From there, swim northward through the narrow channel. The guardian blocking your path is an Invasive Plesioth. My tip? Use a hammer to shatter its head and quickly end the confrontation to secure the egg.

A map showing Lagiacrus' location in Mirror Lake

3. Astalos (Azuria – Mirror Lake)

The final rare find in the Azuria region is the Astalos. Its den is tucked into the northwestern cliffs of Mirror Lake. You will need a Monstie with the “Fly” ability to catch the updrafts and reach the plateau decorated with glowing endemic life. Guarding the nest is an Invasive Seregios. Watch the color of its aura when it roars; use an Area-of-Effect (AOE) hammer skill to win the Head-to-Head and send it packing.

4. Canyne (Cantalta Timberland)

The Canyne egg is uniquely tied to your progression through the main narrative in the southern Cantalta Timberland. Despite being a story-related acquisition, it is still guarded by an Invasive Arzuros. Don’t let the bear fool you—it will summon reinforcements. Keep clearing the additional monsters it calls for help, and the Arzuros will eventually flee the scene.

5. Nargacuga (Cantalta Timberland – Blessing Hill)

For the Nargacuga, head to the Blessing Hill area of the Canalta Timberland. You’ll need to glide to the southeastern peaks to locate the den. Here, you’ll face a dangerous Invasive Nerscylla. This guardian is notorious for its “Invasive Death Scissors” attack, which can knock out a Rider in one hit. Counter this by using Wyvern Blaze with a gunlance whenever the monster targets you.

6. Mizutsune (Cantalta Timberland – Frozen Grotto)

The elegant Mizutsune hides behind the massive waterfall at the northern edge of the Frozen Grotto. Standing in your way is an Invasive Shogun Ceanataur. To survive its relentless claw strikes, I recommend boosting your party’s defense with “Defense Up (L)” before engaging. Once the crab is cleared, the bubble-fox egg is yours.

7. Zinogre (Tarukan – Rococo Rocks)

As you move into the third region, Tarukan, you can find the Zinogre at the highest peak of Rococo Rocks. A flying Monstie is required for this ascent. Inside the den, an Invasive Odogaron awaits. To turn the tide, use Almudron’s “Mud Torrent” ability to inflict the Mudbogged status, then focus on its claws with piercing damage for a swift victory.

8. Tigrex (Tarukan – Colossal Dragon’s Remains)

The Tigrex makes its home at the southern tip of the Colossal Dragon’s Remains. Navigate the narrow trail hidden behind the towering mountain range. This den is guarded by an Invasive Diablos. This battle requires patience; wait for it to burrow, then use “Meteor Hammer” to strike it underground and force it to flee.

9. Barioth (Serathis – Coastline)

The final endangered species is the Barioth, located in the Serathis region. Search northeast of the Coastline Catavan Stand. The egg is protected by an Invasive Khezu that relies heavily on paralysis. Ensure your inventory is stocked with paralysis cures. Win your Head-to-Heads and use Kinship Skills to counter its “Invasive” special attacks to complete your collection.

Quick Reference: Endangered Species Locations

Monster Region Specific Area Invasive Guardian
Rathian Azuria Sunpetal Plains Yian Garuga
Lagiacrus Azuria Mirror Lake Plesioth
Astalos Azuria Mirror Lake Seregios
Canyne Cantalta Timberland (South) Arzuros
Nargacuga Cantalta Blessing Hill Nerscylla
Mizutsune Cantalta Frozen Grotto Shogun Ceanataur
Zinogre Tarukan Rococo Rocks Odogaron
Tigrex Tarukan Dragon’s Remains Diablos
Barioth Serathis Coastline Khezu

Tracking down these rare specimens requires a mix of exploration and combat strategy, but the reward of a top-tier Monstie is worth the effort. For more gaming guides, hardware reviews, and tech insights, keep it locked to Digital Tech Explorer.


About the Author: TechTalesLeo is a dynamic storyteller and tech enthusiast dedicated to bridging the gap between complex digital trends and everyday usability. With a background in digital media, Leo brings practical tips and engaging narratives to the tech community.

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