A few points about lore tyranids – forum – dakkadakka gas 78 facebook

-First, void travel by there means must take a huge amount of biological energy. Therefore most (or at the least a good portion) of any biological energy they get from devouring a planet must go to their travel reserves. Due to the heat tax law they would have to break down all their combat forms after they devoured a planet. Even then, they would only get a fraction of that biological energy they had invested in creating and maintaining those combat forms. But it would be necessary to travel the void of space.

-Second, given that they would have to break down the majority of combat forms, that means that most of any army they would need has to be assembled on site when they land on a planet. This would mean that an early infestation would be relatively easy to quash. Think of how long a single baby human takes to be born. Now apply that to ten thousand (as a start) combat forms. Yes the hivemind having absolute control over biological functions might expedite the process a little. But certain biological necessities must be accounted for: digestive systems, nervous systems, neural programming,immune systems (hate to have your Tyranids die to the flu now wouldn’t you). And they Have to do this continuously ’til the end. And if there are environmental factors to account for, that will cost more biomass, time, and energy

Hummingbird- The Hive Fleet is small, therefore it needs a more constant sources of food (hummingbirds in real life are always a few hours away from starvation). They must hit extremely hard in areas that are rich in biomass but lack in any sort of defense. Any sort of defense is its bane. So more than likely they take a small bite out of a planet then piss off else where, unless it is uninhabited.

-Last point. Given all of these, a Hive Fleet cannot afford any losses, or Pyrrhic victories. They have to win just about any engagement they run into. If there is ever a situation where the given amount of energy that they expend to take a planet is more than that they will get from the planet, they have already lost. Because either they will not have the energy to make it to the next planet, or they will have to consolidate their biomass and energy, thus making their takeover of the next one even more difficult.

Tyranids do not travel via Warp jumps, such as the Imperium does, and so instead rely on their Narvhal ships. Through the use of monofilament spines clustered along a Narvhal’s bow which can interpret a wide range of sensory input and even a broad spectrum of gravimetric signals, a Narvhal can detect the presence of a planetary system at an incredible distance away. It can then somehow harness the system’s gravity to create a corridor of compressed-space through which Tyranid vessels can travel towards the system at a swift rate. Whilst slower than proper warp travel, this method is infinitely more reliable.

Would also like to point out that the consumption of a planet/system would give a mind-boggling amount of biomass to use. Someone on the Tyranid forum, the Hive Mind, did the math, and it’s in the quadtrillions in units of energy measurements. I cannot remember the math, but it was staggering. This is taking into account that they have fleets that are comprised of millions of organisms, all carrying plenty of biomass slurry for themselves, and to use to create life-forms.

-In the official fluff tyranids are bound to totally nom nom the galaxy unless all races ally to counter them (which won’t happen). The hibes that already have arrived in the Imperium are explecitly said to be tiny and you can see how they’re already rampaging across the Imperium. The situation of the latter in 8th fluff maked in addition even less likely to put an actual resistance.

-To win an attrition war against the tyranids amounts to precenting them from feasting on the planet and recovering their dead creatures since the biomasse needed to spawn new warriors is jarvested from those sources. If the defenders do hold their ground enough then they habe a chance to win if they can get help from orbit: I guess a hive fleet is not as tough in void combat as it is in ground combat, and if they are pushed back without being able to compendate and make benefits on the planet’s biomasse, they basically beat it. The tyranids, as a matter of fact, need to secure the territory to male the best at of it by tyranoforming it, that to say generate biological facilities to swallow the biomasse, transfer it to the fleet, where it finally is converted into whatever is needed.

-Firstly a tyranid fleet before it’s been made ready for engagement is ‘t thoroughly dormant and undefended. Some organism are originally in charge of patrolling and protecting the ships from intruders ( like our beloved greenskins do for instance). Secondly, most fighting organism are extremly simple schemes: they habe no intullectual capabilities and only the purposed creatures to absorbing biomasse are provided with a digestive system.

-Because it is too little and emits little energy signatures, a remnant from a beaten hive fleet is able to sneak through lical defenses until it rezches undefended worlds where it can regrow and recover to become immensly powerful again. The shadow in the warp, that a little as well as a huge hive fleet can relay as a beacon because of its link the the hive spirit, is also able to cut reinforcements through warp travel and can allow a tyranid assault to be already long lived when the threat is finally identify.

-Firstly a tyranid fleet before it’s been made ready for engagement is ‘t thoroughly dormant and undefended. Some organism are originally in charge of patrolling and protecting the ships from intruders ( like our beloved greenskins do for instance). Secondly, most fighting organism are extremly simple schemes: they habe no intullectual capabilities and only the purposed creatures to absorbing biomasse are provided with a digestive system.

-Because it is too little and emits little energy signatures, a remnant from a beaten hive fleet is able to sneak through lical defenses until it rezches undefended worlds where it can regrow and recover to become immensly powerful again. The shadow in the warp, that a little as well as a huge hive fleet can relay as a beacon because of its link the the hive spirit, is also able to cut reinforcements through warp travel and can allow a tyranid assault to be already long lived when the threat is finally identify.

-The plot assumes that having eaten the entire galaxy they come from is enough to sustain the travel. 1 billion is much, but 1 billion out of 100 billions isn’t quite de same, if tou get what I mean. What’s more, by the time the Imperium understodd and reacted to the threat, they jad already absorbed many worlds of this galaxy.

-They haven’t been mentionned yet, but genestealer cults are enslaved by the genestealer scouts and will eventually launch uprisings that smoothen the defences and hinders reinforcements a few months before the hive itself arrives. Most of the time, the defenders are overwehked before any help can rescue them.