diff --git a/.project/designs/app/src/pages/TerrainEcology.tsx b/.project/designs/app/src/pages/TerrainEcology.tsx
index d8e488c6..f6807cfe 100644
--- a/.project/designs/app/src/pages/TerrainEcology.tsx
+++ b/.project/designs/app/src/pages/TerrainEcology.tsx
@@ -39,7 +39,14 @@ interface FaunaSpecies {
   ecology_tier?: number;
   trophic_level?: string;
   terrain_affinity?: string[];
+  migration_range?: number;
+  carrying_capacity?: number;
+  food_consumption_per_turn?: number;
+  habitat_min?: number;
+  combat_profile?: { hp: number; strength: number; dexterity: number; constitution: number };
   cognitive_profile?: { intelligence: number; can_hold_grudge: boolean };
+  devastation?: { auto_defeat_tier_at_or_below: number; description: string };
+  loot_table?: { legendary?: string[]; rare?: string[]; common?: string[] };
 }
 
 interface WildUnit {
@@ -356,16 +363,27 @@ export function TerrainEcologyPage(): ReactElement {
             <Column>
               <ColumnLabel>fauna ({faunaOnTerrain.length})</ColumnLabel>
               {faunaOnTerrain.length === 0 && <Empty>none mapped to this terrain</Empty>}
-              {faunaOnTerrain.map(f => (
-                <SpeciesRow key={f.id} $accent="#a07cc9">
-                  <SpeciesName>{f.name}</SpeciesName>
-                  <SpeciesMeta>
-                    {f.ecology_tier && <span>tier {f.ecology_tier}</span>}
-                    {f.trophic_level && <span>{f.trophic_level}</span>}
-                    {f.cognitive_profile?.can_hold_grudge && <span style={{ color: "#d95940" }}>✦ grudge int{f.cognitive_profile.intelligence}</span>}
-                  </SpeciesMeta>
-                </SpeciesRow>
-              ))}
+              {faunaOnTerrain.map(f => {
+                const isApex = (f.ecology_tier ?? 0) >= 8;
+                const accent = isApex ? "#d95940" : (f.combat_profile ? "#e69933" : "#a07cc9");
+                return (
+                  <SpeciesRow key={f.id} $accent={accent}>
+                    <SpeciesName>
+                      {f.name}{isApex && <span style={{ color: "#d95940", marginLeft: 6 }}>★ apex</span>}
+                    </SpeciesName>
+                    <SpeciesMeta>
+                      {f.ecology_tier && <span>tier {f.ecology_tier}</span>}
+                      {f.trophic_level && <span>{f.trophic_level}</span>}
+                      {f.migration_range !== undefined && <span style={{ color: "#66bfff" }}>range {f.migration_range}h</span>}
+                      {f.food_consumption_per_turn !== undefined && <span style={{ color: "#e69933" }}>eats {f.food_consumption_per_turn}/t</span>}
+                      {f.combat_profile && <span style={{ color: "#d95940" }}>hp {f.combat_profile.hp}, str {f.combat_profile.strength}</span>}
+                      {f.cognitive_profile?.can_hold_grudge && <span style={{ color: "#d95940" }}>✦ grudge int{f.cognitive_profile.intelligence}</span>}
+                      {f.devastation && <span style={{ color: "#d95940", fontWeight: 600 }}>devastates ≤t{f.devastation.auto_defeat_tier_at_or_below}</span>}
+                      {f.loot_table?.legendary?.length && <span style={{ color: "#ccbf73" }}>★ {f.loot_table.legendary.length} legendary</span>}
+                    </SpeciesMeta>
+                  </SpeciesRow>
+                );
+              })}
             </Column>
 
             <Column>
diff --git a/public/resources/ecology/fauna/species/ancient_green_dragon.json b/public/resources/ecology/fauna/species/ancient_green_dragon.json
new file mode 100644
index 00000000..01cd3793
--- /dev/null
+++ b/public/resources/ecology/fauna/species/ancient_green_dragon.json
@@ -0,0 +1,91 @@
+{
+  "id": "ancient_green_dragon",
+  "name": "Ancient Green Dragon",
+  "description": "A wyrm of canopy and cunning — the smallest of the great dragons by mass, the largest by malice. Speaks dwarven, elf-tongue, kobold; lies in all four.",
+  "tags": [
+    "fauna",
+    "tier_10",
+    "apex_predator",
+    "boss",
+    "poison_breath",
+    "cunning"
+  ],
+  "domain": "land_air",
+  "trophic_level": "apex_predator",
+  "lineage": "true_dragon",
+  "ecology_tier": 10,
+  "traits": [
+    "poison_immune",
+    "flying",
+    "venom_breath_acid",
+    "deceiver",
+    "ancient"
+  ],
+  "habitat_min": 0.5,
+  "migration_range": 12,
+  "carrying_capacity": 0.35,
+  "food_consumption_per_turn": 5,
+  "lifecycle": {
+    "mature_age_turns": 3500,
+    "max_age_turns": null
+  },
+  "terrain_affinity": [
+    "jungle",
+    "tropical_rainforest",
+    "enchanted_forest",
+    "swamp",
+    "bog"
+  ],
+  "combat_profile": {
+    "hp": 680,
+    "strength": 24,
+    "dexterity": 18,
+    "constitution": 22,
+    "attack_type": "acid_breath",
+    "range": 4,
+    "defense": 18,
+    "breath_weapon": {
+      "damage": 45,
+      "area_radius": 1,
+      "cooldown_turns": 2
+    }
+  },
+  "cognitive_profile": {
+    "intelligence": 10,
+    "hostility": "hunting",
+    "can_hold_grudge": true,
+    "grudge_memory_turns": 200
+  },
+  "devastation": {
+    "auto_defeat_tier_at_or_below": 5,
+    "description": "Cunning beyond intimidation — manipulates lesser creatures, sets traps, recruits goblins as pawns. May parley if approached at tier 8+ with appropriate tribute (gold + slaves traditionally)."
+  },
+  "loot_table": {
+    "legendary": [
+      "green_dragon_scale",
+      "green_dragon_heart",
+      "venomous_hoard"
+    ],
+    "rare": [
+      "acid_fang",
+      "wisdom_codex_lost"
+    ],
+    "common": [
+      "acid_etched_bone"
+    ]
+  },
+  "flavor": "It has been planning your death for sixty years. It will not appear hurried about it.",
+  "encyclopedia": {
+    "category": "fauna",
+    "entry_type": "species",
+    "detail_route": "/bestiary",
+    "tags": [
+      "fauna",
+      "tier_10",
+      "boss",
+      "dragon",
+      "poison",
+      "intelligent"
+    ]
+  }
+}
diff --git a/public/resources/ecology/fauna/species/ancient_red_dragon.json b/public/resources/ecology/fauna/species/ancient_red_dragon.json
new file mode 100644
index 00000000..a5e2ac9d
--- /dev/null
+++ b/public/resources/ecology/fauna/species/ancient_red_dragon.json
@@ -0,0 +1,87 @@
+{
+  "id": "ancient_red_dragon",
+  "name": "Ancient Red Dragon",
+  "description": "An ageless wyrm of fire and avarice. Hunts entire valleys; sleeps on hoards built across centuries. Anything below the iron age is prey.",
+  "tags": [
+    "fauna",
+    "tier_10",
+    "apex_predator",
+    "boss",
+    "fire_breath"
+  ],
+  "domain": "land_air",
+  "trophic_level": "apex_predator",
+  "lineage": "true_dragon",
+  "ecology_tier": 10,
+  "traits": [
+    "fire_immune",
+    "flying",
+    "venom_breath_fire",
+    "treasure_hoarder",
+    "ancient"
+  ],
+  "habitat_min": 0.6,
+  "migration_range": 18,
+  "carrying_capacity": 0.45,
+  "food_consumption_per_turn": 8,
+  "lifecycle": {
+    "mature_age_turns": 5000,
+    "max_age_turns": null
+  },
+  "terrain_affinity": [
+    "mountains",
+    "volcano"
+  ],
+  "combat_profile": {
+    "hp": 850,
+    "strength": 32,
+    "dexterity": 12,
+    "constitution": 26,
+    "attack_type": "fire_breath",
+    "range": 4,
+    "defense": 22,
+    "breath_weapon": {
+      "damage": 60,
+      "area_radius": 2,
+      "cooldown_turns": 3
+    }
+  },
+  "cognitive_profile": {
+    "intelligence": 9,
+    "hostility": "hunting",
+    "can_hold_grudge": true,
+    "grudge_memory_turns": 100,
+    "pack_behavior": null
+  },
+  "devastation": {
+    "auto_defeat_tier_at_or_below": 5,
+    "description": "Any unit of tier 5 or lower facing this dragon alone is destroyed without contest. Tier 6-7 stand a chance only with prepared positions and ranged support. Tier 8+ (steam-era weapons, mithril alloys) can engage as a coordinated company."
+  },
+  "loot_table": {
+    "legendary": [
+      "red_dragon_scale",
+      "red_dragon_heart",
+      "ancient_hoard_treasure"
+    ],
+    "rare": [
+      "dragon_fang",
+      "dragon_fire_gland"
+    ],
+    "common": [
+      "scorched_bone"
+    ]
+  },
+  "flavor": "It does not raid the village. It owns the village. The villagers simply weren't told.",
+  "encyclopedia": {
+    "category": "fauna",
+    "entry_type": "species",
+    "detail_route": "/bestiary",
+    "tags": [
+      "fauna",
+      "tier_10",
+      "boss",
+      "dragon",
+      "fire"
+    ]
+  }
+}
diff --git a/public/resources/ecology/fauna/species/ancient_white_dragon.json b/public/resources/ecology/fauna/species/ancient_white_dragon.json
new file mode 100644
index 00000000..2a99434c
--- /dev/null
+++ b/public/resources/ecology/fauna/species/ancient_white_dragon.json
@@ -0,0 +1,89 @@
+{
+  "id": "ancient_white_dragon",
+  "name": "Ancient White Dragon",
+  "description": "A wyrm of glacier and silence. Stalks the frozen wastes, freezing prey solid. Cold older than the dwarven kingdoms.",
+  "tags": [
+    "fauna",
+    "tier_10",
+    "apex_predator",
+    "boss",
+    "cold_breath"
+  ],
+  "domain": "land_air",
+  "trophic_level": "apex_predator",
+  "lineage": "true_dragon",
+  "ecology_tier": 10,
+  "traits": [
+    "cold_immune",
+    "flying",
+    "venom_breath_cold",
+    "stealth_snow",
+    "ancient"
+  ],
+  "habitat_min": 0.7,
+  "migration_range": 14,
+  "carrying_capacity": 0.3,
+  "food_consumption_per_turn": 6,
+  "lifecycle": {
+    "mature_age_turns": 4000,
+    "max_age_turns": null
+  },
+  "terrain_affinity": [
+    "ice",
+    "snow",
+    "polar_desert",
+    "alpine_tundra",
+    "tundra"
+  ],
+  "combat_profile": {
+    "hp": 720,
+    "strength": 28,
+    "dexterity": 14,
+    "constitution": 24,
+    "attack_type": "cold_breath",
+    "range": 4,
+    "defense": 20,
+    "breath_weapon": {
+      "damage": 50,
+      "area_radius": 2,
+      "cooldown_turns": 3
+    }
+  },
+  "cognitive_profile": {
+    "intelligence": 7,
+    "hostility": "hunting",
+    "can_hold_grudge": true,
+    "grudge_memory_turns": 80
+  },
+  "devastation": {
+    "auto_defeat_tier_at_or_below": 5,
+    "description": "Cold breath shatters armor. Pre-iron units freeze without dealing a strike."
+  },
+  "loot_table": {
+    "legendary": [
+      "white_dragon_scale",
+      "white_dragon_heart",
+      "frozen_hoard"
+    ],
+    "rare": [
+      "frost_fang",
+      "frostmaw_gland"
+    ],
+    "common": [
+      "ice_riven_bone"
+    ]
+  },
+  "flavor": "You hear the wing-beat. Then nothing. The cold takes your hearing first.",
+  "encyclopedia": {
+    "category": "fauna",
+    "entry_type": "species",
+    "detail_route": "/bestiary",
+    "tags": [
+      "fauna",
+      "tier_10",
+      "boss",
+      "dragon",
+      "cold"
+    ]
+  }
+}