Pete Oxford / Waved Albatross (Phoebastria irrorata) courtship, Punta Cevallos, Espaola Island, Galapagos Islands, Ecuador, South America. Endemic, Critically endangered

Yukihiro Fukuda / Japanese macaque / Snow monkey {Macaca fuscata} adult female bathing in hot springs tapping the water surface with hand in play, water at 40 degrees, Jigokudani, Nagano, Japan

Gavin Hellier / Rubber tree plantation within Pulau Langkawi, Langkawi Island, Malaysia 2008

Gavin Hellier / Rubber tree plantation within Pulau Langkawi, Langkawi Island, Malaysia 2008

Jabruson / Landa / Ndembo / Silkrubber tree (Funtumia elastica) bark with 30 year-old tapping score marks. Bai Hokou, Dzanga-Ndoki National Park, Central African Republic.

Ernie Janes / Lamb tapping ewe's head impatient for a feed, UK

Lisa Hoffner / Orphan Elephant (Loxodonta africana) tapping a keeper on the hat as he eats dinner in their sleeping quarters. David Sheldrick Wildlife Trust Nairobi Elephant Nursery, Kenya, April 2007.

Charlie Summers / Gentoo Penguin (Pygoscelis papua) chick tapping on adults bill begging to be fed. Sea Lion Island, Falkland Islands, December

Luiz Claudio Marigo / Scars of collecting latex on the trunk of the rubber tree (Hevea brasiliensis) in the Atlantic Rainforest of Southern Bahia, municipality of Una, southern Bahia State, Eastern Brazil. August

Stephen Dalton / Death-watch beetle (Xestobium rufovillosum) tapping on wood to attract a mate, UK

Stephen Dalton / Pirate spider (Ero sp) tapping on the edge of the web of another spider to deceive that spider and then 'attack' it, UK, Mimetidae

Nick Gordon / Man tapping Rubber tree {Hevea brasiliensis} for latex, Rondia State, Amazonia, Brazil.

Bengt Lundberg / Man tapping Rubber tree {Hevea brasiliensis} for latex / sap, Malaysia.

Jane Burton / Tabby farm kitten tapping young Border Collie on the nose, laying in straw

Ingo Arndt / Old Rubber Tree in rainforest showing scars from tapping, Yavari River, Amazon Basin

Ingo Arndt / Old Rubber Tree in rainforest showing scars from repeated tapping, Yavari River, Amazon Basin

John Downer / View down one avenue of trees in Rubber tree plantation {Hevea brasiliensis} Thailand

Nick Garbutt / Collecting latex from Rubber tree {Hevea brasiliensis} Malawi, Southern Africa

Hanne & Jens Eriksen / Drying latex from rubber plantation, Nilambur, Kerala, Southern India

JIM CLARE / Man curing rubber in traditional way, Tambopata river, Peru, South America

LYNN M. STONE / Maple syrup, Vermont, USA

LYNN M. STONE / Pouring sap water from Maple trees into tank for Maple syrup production, Vermont, USA

LYNN M. STONE / Drilling hole in Sugar maple bark for maple sap collection, Vermont, USA

LYNN M. STONE / Sugar maple trees with buckets to collect maple sap for syrup production, Vermont, USA

LYNN M. STONE / Pouring sap water from Maple trees into tank for Maple syrup production, Vermont, USA

LYNN M. STONE / Sugar maple sap dripping through spigot for syrup production, Vermont, USA

LYNN M. STONE / Collecting sap from Maple trees (Acer sp) for Maple syrup, Vermont, USA

LYNN M. STONE / Sugar maple trees with buckets to collect maple sap for syrup production, Vermont, USA

Pete Oxford / Rubber tapping, East coast, Brazil

Premaphotos / Buzzing spider (Anyphaena accentuata) male tapping his palps and abomen on a female's lair under oak leaves during courtship, UK

Premaphotos / Buzzing spider (Anyphaena accentuata) male tapping his palps and abomen on a females lair under oak leaves during courtship, UK