Tag: Sleep

Sleep Time!

Sleep Time!


I have been thinking about sleep this week, and how with longer days and more sunlight during summer, often we rise earlier and stay up later. This is because of serotonin released in your brain (the waking hormone) caused by sunlight (you can counter this with heavy curtains that block out most light). Melatonin is the hormone that causes sleep. Obviously these hormones work differently depending on what species you are, and whether you are diurnal, nocturnal or a crepuscular species.

Anyway – with all that technical nonsense floating around my brain I decided to share some random things about animals and sleep, with a few pictures for your enjoyment too!


Fish and snake need darkness to help them sleep due to not having eyelids – snakes may bury in substrate but fish do not, so remember to turn off tank lights

Some species of snails can sleep for as long as 3 years!

Elephants sleep only 3 and a half hours per day, usually standing

Horses and cows cannot dream unless they sleep lying down

Giraffes need less than 2 hours of sleep per day, often getting no more than half an hour of sleep daily – broken into several intervals of between 5-10 minutes – they sleep the least of of all mammals

Giraffe
Giraffe

When dogs sleep on their back, with their paws up, they are in a deep sleep

The little brown bat sleeps up to 12-20 hours a day

Cats (big & small) need a minimum of 12 hours sleep per day, on average sleep for 14 hours daily

Sharks must keep moving whilst they sleep, often covering great distances

Birds have a locking system to stabilize them whilst they sleep, perched

Kookaburra
Kookaburra

Dolphins and ducks can half sleep – where only half their brain is asleep at a time, the other half stays awake!

Flamingo’s also sleep half their brain at a time, whilst on one leg

Walruses can go up to 3 days without sleep, but when they do sleep they get on average of 14 hours (just like cats!) daily

Koala’s sleep approximately 18 hours daily

Sloth’s sleep 15-18 hours daily (not as much as you may have thought)

sloth
Sloth

Bats sleep (and rest) hanging upside-down as their wings are not strong enough to take off from standing – they need to drop into flight

The green tree-frog turns a tan colour during sleep

Prey species tend to sleep little and often in safe (often high) places, or stood up – whereas predator species sleep for long periods and where they like


I hope that you found that interesting – if you want any more information or have any questions, about anything animal related, please feel free to ask in the ‘thoughts’ box below or on the comments page, or via social media sites
– Facebook, Google+, Twitter or LinkedIn.
“Did You Know?” Cats

“Did You Know?” Cats


How well do you know your cat?! Here are some interesting facts about cats you may not have known…


  • Cats hear at a higher frequency – higher than dogs or cats
  • The sense of smell of a cat is less sensitive than that of a dog
  • The sensitivity of cats ears are 3x better than a humans
  • Cats can smell odours 1000x lower than a human can detect
  • Whiskers are also known as vibrissae
  • Vibrissae help to detect the proximity of objects
  • Whiskers are used to help detect prey
  • Mother cats may chew the whiskers short or off their kittens, so that they cannot wander off too far (they will grow back)
  • Proper vibrissae do not develop until a cat is 5-6 months old
  • A female cat can be known as a Queen or a Molly – the term Queen is more common for a mother/ nursing cat
  • Males are called Tomcats, and occupy a larger territory than females
  • Cats have scent glands on their face, between their toes, their rump, their shoulders and neck
  • Cats can tell age, gender, and health from smelling the spray of another cat – as well as how long ago the cat made the scent spray
  • This is used to mark territory – and can be done by both genders, neutered or not
  • A cat may spray due to anxiety and stress – even in the home

  • Cats are an altricial species – born blind, deaf, and fur-less (require nourishment and more development after birth before they can move around much on their own)
  • Kittens can get food preferences from their mother whilst in the womb and when suckling
  • Cats are nocturnal or crepuscular hunters – so don’t be surprised if they wander off during the night or dawn/ dusk
  • They have spectacular night vision
  • When you see a cats eyes “shine” in the darkness, this is due to the tapetum behind the the eye which reflects the light
  • If humans had eyes the same size as a cats in comparison to their size, our eyes would be 20cm in diameter!
  • Cats sleep around 15 hours per day – that’s two thirds of their lives!
  • Cats switch between dozing and deep sleeping – sleeping deeply for approximately 5 minutes in between 15-30 minutes of dozing
  • Dozing cats are ready to jump into action if necessary with minimal warning
Zzz
Zzz

 

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